Search

Donald T. Hajec

Examiner (ID: 10611)

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

Applications

Application numberTitle of the applicationFiling DateStatus
07/051373 CYCLONE CLASSIFIER May 18, 1987 Abandoned
Array ( [id] => 2452644 [patent_doc_number] => 04784761 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-11-15 [patent_title] => 'Drum screen' [patent_app_type] => 1 [patent_app_number] => 7/053855 [patent_app_country] => US [patent_app_date] => 1987-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 1846 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/784/04784761.pdf [firstpage_image] =>[orig_patent_app_number] => 053855 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/053855
Drum screen May 17, 1987 Issued
Array ( [id] => 2526389 [patent_doc_number] => 04809616 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-03-07 [patent_title] => 'Device for controlling drive couplings of the axles of a locomotive' [patent_app_type] => 1 [patent_app_number] => 7/045226 [patent_app_country] => US [patent_app_date] => 1987-04-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 1024 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/809/04809616.pdf [firstpage_image] =>[orig_patent_app_number] => 045226 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/045226
Device for controlling drive couplings of the axles of a locomotive Apr 29, 1987 Issued
Array ( [id] => 2616165 [patent_doc_number] => 04894148 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-01-16 [patent_title] => 'Device for separating a heterogeneous mass of solid material into fractions' [patent_app_type] => 1 [patent_app_number] => 7/043373 [patent_app_country] => US [patent_app_date] => 1987-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4061 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 293 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/894/04894148.pdf [firstpage_image] =>[orig_patent_app_number] => 043373 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/043373
Device for separating a heterogeneous mass of solid material into fractions Apr 27, 1987 Issued
Array ( [id] => 2479405 [patent_doc_number] => 04820407 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-04-11 [patent_title] => 'Solids screens' [patent_app_type] => 1 [patent_app_number] => 7/042469 [patent_app_country] => US [patent_app_date] => 1987-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2061 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/820/04820407.pdf [firstpage_image] =>[orig_patent_app_number] => 042469 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/042469
Solids screens Apr 23, 1987 Issued
Array ( [id] => 2404960 [patent_doc_number] => 04770343 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-09-13 [patent_title] => 'Resilient rail fixing device for track installations' [patent_app_type] => 1 [patent_app_number] => 7/042629 [patent_app_country] => US [patent_app_date] => 1987-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 21 [patent_no_of_words] => 6764 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 389 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/770/04770343.pdf [firstpage_image] =>[orig_patent_app_number] => 042629 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/042629
Resilient rail fixing device for track installations Apr 22, 1987 Issued
Array ( [id] => 2664024 [patent_doc_number] => 04954248 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-09-04 [patent_title] => 'Electrical drum-type separator' [patent_app_type] => 1 [patent_app_number] => 7/294561 [patent_app_country] => US [patent_app_date] => 1987-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 4207 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 282 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/954/04954248.pdf [firstpage_image] =>[orig_patent_app_number] => 294561 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/294561
Electrical drum-type separator Apr 20, 1987 Issued
Array ( [id] => 2535495 [patent_doc_number] => 04805780 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-02-21 [patent_title] => 'Sorting machine, in particlar for small parcels' [patent_app_type] => 1 [patent_app_number] => 7/041136 [patent_app_country] => US [patent_app_date] => 1987-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1008 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/805/04805780.pdf [firstpage_image] =>[orig_patent_app_number] => 041136 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/041136
Sorting machine, in particlar for small parcels Apr 13, 1987 Issued
Array ( [id] => 2475504 [patent_doc_number] => 04822482 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-04-18 [patent_title] => 'Hydraulic separating apparatus and method' [patent_app_type] => 1 [patent_app_number] => 7/048363 [patent_app_country] => US [patent_app_date] => 1987-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 4576 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 358 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/822/04822482.pdf [firstpage_image] =>[orig_patent_app_number] => 048363 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/048363
Hydraulic separating apparatus and method Apr 10, 1987 Issued
Array ( [id] => 2494676 [patent_doc_number] => 04850492 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-07-25 [patent_title] => 'Conveyor system ejector wheel' [patent_app_type] => 1 [patent_app_number] => 7/034763 [patent_app_country] => US [patent_app_date] => 1987-04-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 4095 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/850/04850492.pdf [firstpage_image] =>[orig_patent_app_number] => 034763 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/034763
Conveyor system ejector wheel Apr 5, 1987 Issued
Array ( [id] => 2432558 [patent_doc_number] => 04750620 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-06-14 [patent_title] => 'Method and apparatus for sorting out packaged items identified as defective' [patent_app_type] => 1 [patent_app_number] => 7/038402 [patent_app_country] => US [patent_app_date] => 1987-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 1305 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/750/04750620.pdf [firstpage_image] =>[orig_patent_app_number] => 038402 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/038402
Method and apparatus for sorting out packaged items identified as defective Mar 29, 1987 Issued
Array ( [id] => 2546940 [patent_doc_number] => 04814071 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-03-21 [patent_title] => 'Flexible connector for screening machine' [patent_app_type] => 1 [patent_app_number] => 7/028769 [patent_app_country] => US [patent_app_date] => 1987-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 2540 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/814/04814071.pdf [firstpage_image] =>[orig_patent_app_number] => 028769 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/028769
Flexible connector for screening machine Mar 22, 1987 Issued
Array ( [id] => 2547141 [patent_doc_number] => 04848590 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-07-18 [patent_title] => 'Apparatus for the multisorting of scrap metals by x-ray analysis' [patent_app_type] => 1 [patent_app_number] => 7/029181 [patent_app_country] => US [patent_app_date] => 1987-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 6301 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 374 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/848/04848590.pdf [firstpage_image] =>[orig_patent_app_number] => 029181 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/029181
Apparatus for the multisorting of scrap metals by x-ray analysis Mar 22, 1987 Issued
Array ( [id] => 2282753 [patent_doc_number] => 04709798 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1987-12-01 [patent_title] => 'Rotary feeder to orient and feed bottle caps and similar parts' [patent_app_type] => 1 [patent_app_number] => 7/028044 [patent_app_country] => US [patent_app_date] => 1987-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 9 [patent_no_of_words] => 3110 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 429 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/709/04709798.pdf [firstpage_image] =>[orig_patent_app_number] => 028044 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/028044
Rotary feeder to orient and feed bottle caps and similar parts Mar 19, 1987 Issued
Array ( [id] => 2508937 [patent_doc_number] => 04818378 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-04-04 [patent_title] => 'Magnetic conveyor with multiple spiral ramps' [patent_app_type] => 1 [patent_app_number] => 7/026636 [patent_app_country] => US [patent_app_date] => 1987-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 1833 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/818/04818378.pdf [firstpage_image] =>[orig_patent_app_number] => 026636 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/026636
Magnetic conveyor with multiple spiral ramps Mar 16, 1987 Issued
Array ( [id] => 2515772 [patent_doc_number] => 04887723 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-12-19 [patent_title] => 'Anti-friction sorting roll and stabilizer' [patent_app_type] => 1 [patent_app_number] => 7/027002 [patent_app_country] => US [patent_app_date] => 1987-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 2402 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/887/04887723.pdf [firstpage_image] =>[orig_patent_app_number] => 027002 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/027002
Anti-friction sorting roll and stabilizer Mar 16, 1987 Issued
Array ( [id] => 2536954 [patent_doc_number] => 04807761 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-02-28 [patent_title] => 'Hydraulic separating method and apparatus' [patent_app_type] => 1 [patent_app_number] => 7/027170 [patent_app_country] => US [patent_app_date] => 1987-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 3851 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 256 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/807/04807761.pdf [firstpage_image] =>[orig_patent_app_number] => 027170 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/027170
Hydraulic separating method and apparatus Mar 16, 1987 Issued
Array ( [id] => 2380586 [patent_doc_number] => 04783254 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-11-08 [patent_title] => 'Cyclone separator means' [patent_app_type] => 1 [patent_app_number] => 7/022205 [patent_app_country] => US [patent_app_date] => 1987-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 14 [patent_no_of_words] => 2618 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 163 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/783/04783254.pdf [firstpage_image] =>[orig_patent_app_number] => 022205 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/022205
Cyclone separator means Mar 4, 1987 Issued
Array ( [id] => 2471090 [patent_doc_number] => 04812229 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-03-14 [patent_title] => 'Screen cage' [patent_app_type] => 1 [patent_app_number] => 7/022264 [patent_app_country] => US [patent_app_date] => 1987-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 1144 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/812/04812229.pdf [firstpage_image] =>[orig_patent_app_number] => 022264 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/022264
Screen cage Mar 4, 1987 Issued
Array ( [id] => 2384115 [patent_doc_number] => 04772381 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1988-09-20 [patent_title] => 'Apparatus for separating electrically conductive non-ferrous metals' [patent_app_type] => 1 [patent_app_number] => 7/020127 [patent_app_country] => US [patent_app_date] => 1987-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 4328 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 344 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/772/04772381.pdf [firstpage_image] =>[orig_patent_app_number] => 020127 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/020127
Apparatus for separating electrically conductive non-ferrous metals Feb 26, 1987 Issued
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