Array
(
[id] => 2726824
[patent_doc_number] => 04997414
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1991-03-05
[patent_title] => 'Torque equalizer for contrarotary shafts'
[patent_app_type] => 1
[patent_app_number] => 7/254941
[patent_app_country] => US
[patent_app_date] => 1988-10-31
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 7
[patent_no_of_words] => 1485
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 4
[patent_words_short_claim] => 32
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/997/04997414.pdf
[firstpage_image] =>[orig_patent_app_number] => 254941
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/254941 | Torque equalizer for contrarotary shafts | Oct 30, 1988 | Issued |