Array
(
[id] => 3351769
[patent_doc_number] => 04190588
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1980-02-26
[patent_title] => 'Method of preparing a substituted butyrolactone acetic acid'
[patent_app_type] => 1
[patent_app_number] => 5/618173
[patent_app_country] => US
[patent_app_date] => 1975-09-30
[patent_effective_date] => 0000-00-00
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[patent_figures_cnt] => 0
[patent_no_of_words] => 6845
[patent_no_of_claims] => 4
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[patent_words_short_claim] => 152
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/04/190/04190588.pdf
[firstpage_image] =>[orig_patent_app_number] => 618173
[rel_patent_id] =>[rel_patent_doc_number] =>) 05/618173 | Method of preparing a substituted butyrolactone acetic acid | Sep 29, 1975 | Issued |