Array
(
[id] => 2395084
[patent_doc_number] => 04764824
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1988-08-16
[patent_title] => 'Dual servo system for rotating tape head control'
[patent_app_type] => 1
[patent_app_number] => 7/841620
[patent_app_country] => US
[patent_app_date] => 1986-03-20
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 7
[patent_figures_cnt] => 30
[patent_no_of_words] => 6880
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 193
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/764/04764824.pdf
[firstpage_image] =>[orig_patent_app_number] => 841620
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/841620 | Dual servo system for rotating tape head control | Mar 19, 1986 | Abandoned |