The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 1991
Filed:
Apr. 02, 1990
Applicant:
Inventors:
Noriaki Koto, Ichihara, JP;
Toyohiko Abe, Ichihara, JP;
Hideo Suzuki, Funabashi, JP;
Kanji Otsuka, Funabashi, JP;
Assignee:
Nissan Chemical Industries, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528188 ; 528125 ; 528128 ; 528171 ; 528172 ; 528173 ; 528185 ; 528220 ; 528229 ; 528352 ; 528353 ;
Abstract
A polyimide resin composed essentially of repeating units represented by the general formula: ##STR1## where R is a divalent aromatic hydrocarbon radical.
Koto, Noriaki. (1991). Polyimide resin from cyclobutane tetracarboxylic acid dianhydride (U.S. Patent No. 5053480). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5053480
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile