Array
(
[id] => 2643328
[patent_doc_number] => 04899243
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1990-02-06
[patent_title] => 'Flat spring structure for magnetic tape cassettes, in particular video cassettes'
[patent_app_type] => 1
[patent_app_number] => 7/130254
[patent_app_country] => US
[patent_app_date] => 1987-12-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 9
[patent_no_of_words] => 2524
[patent_no_of_claims] => 9
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 156
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/899/04899243.pdf
[firstpage_image] =>[orig_patent_app_number] => 130254
[rel_patent_id] =>[rel_patent_doc_number] =>) 07/130254 | Flat spring structure for magnetic tape cassettes, in particular video cassettes | Dec 7, 1987 | Issued |