Search

Donald T. Hajec

Examiner (ID: 9009)

Most Active Art Unit
3102
Art Unit(s)
3102, 2514, 3101, 3108, 2876, 2800
Total Applications
744
Issued Applications
630
Pending Applications
1
Abandoned Applications
113

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 2631893 [patent_doc_number] => 04979624 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-12-25 [patent_title] => 'Sizing apparatus and proportional spacing mechanism' [patent_app_type] => 1 [patent_app_number] => 7/314953 [patent_app_country] => US [patent_app_date] => 1989-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 14 [patent_no_of_words] => 3966 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/979/04979624.pdf [firstpage_image] =>[orig_patent_app_number] => 314953 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/314953
Sizing apparatus and proportional spacing mechanism Feb 23, 1989 Issued
Array ( [id] => 2607763 [patent_doc_number] => 04955484 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-09-11 [patent_title] => 'Device for separating hard objects, such as stones, from a stream of wood' [patent_app_type] => 1 [patent_app_number] => 7/314541 [patent_app_country] => US [patent_app_date] => 1989-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 1555 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 230 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/955/04955484.pdf [firstpage_image] =>[orig_patent_app_number] => 314541 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/314541
Device for separating hard objects, such as stones, from a stream of wood Feb 22, 1989 Issued
Array ( [id] => 2519690 [patent_doc_number] => 04872973 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-10-10 [patent_title] => 'Cyclone classifier' [patent_app_type] => 1 [patent_app_number] => 7/315237 [patent_app_country] => US [patent_app_date] => 1989-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 14 [patent_no_of_words] => 2934 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 339 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/872/04872973.pdf [firstpage_image] =>[orig_patent_app_number] => 315237 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/315237
Cyclone classifier Feb 22, 1989 Issued
Array ( [id] => 2592627 [patent_doc_number] => 04901861 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-20 [patent_title] => 'Asynchronous fruit sorter apparatus' [patent_app_type] => 1 [patent_app_number] => 7/313796 [patent_app_country] => US [patent_app_date] => 1989-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3159 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 246 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/901/04901861.pdf [firstpage_image] =>[orig_patent_app_number] => 313796 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/313796
Asynchronous fruit sorter apparatus Feb 21, 1989 Issued
Array ( [id] => 2690928 [patent_doc_number] => 05000325 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-03-19 [patent_title] => 'Method and apparatus for the sorting of material' [patent_app_type] => 1 [patent_app_number] => 7/314463 [patent_app_country] => US [patent_app_date] => 1989-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 2552 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/000/05000325.pdf [firstpage_image] =>[orig_patent_app_number] => 314463 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/314463
Method and apparatus for the sorting of material Feb 21, 1989 Issued
Array ( [id] => 2616142 [patent_doc_number] => 04894147 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-01-16 [patent_title] => 'Device for screening pulp and a blade for the screening device' [patent_app_type] => 1 [patent_app_number] => 7/314375 [patent_app_country] => US [patent_app_date] => 1989-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 8 [patent_no_of_words] => 3289 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 262 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/894/04894147.pdf [firstpage_image] =>[orig_patent_app_number] => 314375 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/314375
Device for screening pulp and a blade for the screening device Feb 21, 1989 Issued
Array ( [id] => 2582694 [patent_doc_number] => 04921106 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-05-01 [patent_title] => 'Selection device for sweet confections' [patent_app_type] => 1 [patent_app_number] => 7/309433 [patent_app_country] => US [patent_app_date] => 1989-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 9 [patent_no_of_words] => 3245 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/921/04921106.pdf [firstpage_image] =>[orig_patent_app_number] => 309433 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/309433
Selection device for sweet confections Feb 12, 1989 Issued
Array ( [id] => 2620490 [patent_doc_number] => 04919797 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-04-24 [patent_title] => 'Screening apparatus for paper making stock' [patent_app_type] => 1 [patent_app_number] => 7/308338 [patent_app_country] => US [patent_app_date] => 1989-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2401 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/919/04919797.pdf [firstpage_image] =>[orig_patent_app_number] => 308338 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/308338
Screening apparatus for paper making stock Feb 8, 1989 Issued
Array ( [id] => 2610489 [patent_doc_number] => 04919273 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-04-24 [patent_title] => 'Apparatus for sorting metal bars by length' [patent_app_type] => 1 [patent_app_number] => 7/306166 [patent_app_country] => US [patent_app_date] => 1989-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3360 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/919/04919273.pdf [firstpage_image] =>[orig_patent_app_number] => 306166 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/306166
Apparatus for sorting metal bars by length Feb 5, 1989 Issued
Array ( [id] => 2689097 [patent_doc_number] => 04990244 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-02-05 [patent_title] => 'Recycling the components of used single use human waste collecting and/or absorbing products' [patent_app_type] => 1 [patent_app_number] => 7/305791 [patent_app_country] => US [patent_app_date] => 1989-02-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2353 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/990/04990244.pdf [firstpage_image] =>[orig_patent_app_number] => 305791 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/305791
Recycling the components of used single use human waste collecting and/or absorbing products Feb 1, 1989 Issued
Array ( [id] => 2619752 [patent_doc_number] => 04950388 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-08-21 [patent_title] => 'Separation of mixtures in a wind tunnel' [patent_app_type] => 1 [patent_app_number] => 7/328126 [patent_app_country] => US [patent_app_date] => 1989-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 3353 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 257 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/950/04950388.pdf [firstpage_image] =>[orig_patent_app_number] => 328126 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/328126
Separation of mixtures in a wind tunnel Jan 30, 1989 Issued
Array ( [id] => 2619261 [patent_doc_number] => 04956078 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-09-11 [patent_title] => 'Feed prestratification attachment for high efficiency vibratory screening' [patent_app_type] => 1 [patent_app_number] => 7/304188 [patent_app_country] => US [patent_app_date] => 1989-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 3924 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/956/04956078.pdf [firstpage_image] =>[orig_patent_app_number] => 304188 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/304188
Feed prestratification attachment for high efficiency vibratory screening Jan 29, 1989 Issued
Array ( [id] => 2650901 [patent_doc_number] => 04934537 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-06-19 [patent_title] => 'Fish sorting apparatus and method' [patent_app_type] => 1 [patent_app_number] => 7/302656 [patent_app_country] => US [patent_app_date] => 1989-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 3001 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/934/04934537.pdf [firstpage_image] =>[orig_patent_app_number] => 302656 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/302656
Fish sorting apparatus and method Jan 26, 1989 Issued
07/299054 MULTIPLE-USE WAGON ASSEMBLY Jan 18, 1989 Abandoned
Array ( [id] => 2591008 [patent_doc_number] => 04923597 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-05-08 [patent_title] => 'Portable screen with raising and levelling system' [patent_app_type] => 1 [patent_app_number] => 7/297417 [patent_app_country] => US [patent_app_date] => 1989-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 2922 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 431 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/923/04923597.pdf [firstpage_image] =>[orig_patent_app_number] => 297417 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/297417
Portable screen with raising and levelling system Jan 12, 1989 Issued
Array ( [id] => 2738478 [patent_doc_number] => 05022982 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-06-11 [patent_title] => 'Rotary drum solid waste air classifier' [patent_app_type] => 1 [patent_app_number] => 7/296604 [patent_app_country] => US [patent_app_date] => 1989-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2039 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/022/05022982.pdf [firstpage_image] =>[orig_patent_app_number] => 296604 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/296604
Rotary drum solid waste air classifier Jan 12, 1989 Issued
Array ( [id] => 2622803 [patent_doc_number] => 04966689 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-10-30 [patent_title] => 'Self-cleaning grate assembly' [patent_app_type] => 1 [patent_app_number] => 7/298864 [patent_app_country] => US [patent_app_date] => 1989-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 16 [patent_no_of_words] => 3738 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 245 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/966/04966689.pdf [firstpage_image] =>[orig_patent_app_number] => 298864 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/298864
Self-cleaning grate assembly Jan 12, 1989 Issued
Array ( [id] => 2620447 [patent_doc_number] => 04919795 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-04-24 [patent_title] => 'Leakage prevention apparatus for a classifier' [patent_app_type] => 1 [patent_app_number] => 7/297552 [patent_app_country] => US [patent_app_date] => 1989-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2250 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/919/04919795.pdf [firstpage_image] =>[orig_patent_app_number] => 297552 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/297552
Leakage prevention apparatus for a classifier Jan 12, 1989 Issued
Array ( [id] => 2737633 [patent_doc_number] => 05028317 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-07-02 [patent_title] => 'Control of jig separators' [patent_app_type] => 1 [patent_app_number] => 7/294511 [patent_app_country] => US [patent_app_date] => 1988-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 4687 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/028/05028317.pdf [firstpage_image] =>[orig_patent_app_number] => 294511 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/294511
Control of jig separators Dec 21, 1988 Issued
Array ( [id] => 2694671 [patent_doc_number] => 04981219 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1991-01-01 [patent_title] => 'Apparatus and method for separating intermixed particles of differing densities' [patent_app_type] => 1 [patent_app_number] => 7/288482 [patent_app_country] => US [patent_app_date] => 1988-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 1721 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/981/04981219.pdf [firstpage_image] =>[orig_patent_app_number] => 288482 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/288482
Apparatus and method for separating intermixed particles of differing densities Dec 21, 1988 Issued
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