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:
Dec. 04, 1990
Filed:
May. 24, 1990
Applicant:
Inventors:
Marvin J Burgess, Lisle, IL (US);
David A Wargowski, Naperville, IL (US);
Agnes M Palka, St. Charles, IL (US);
Assignee:
Amoco Corporation, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
4284735 ; 428458 ; 528 26 ;
Abstract
A low modulus, solvent resistant, wet etchable polyimide useful in electronic applications as passivation and insulating coatings, said polyimides containing a 4,4'-bis(p-aminophenoxy)biphenyl moiety, a siloxane diamine moiety, and a dianhydride moiety.
Burgess, Marvin. (1990). Polyimide copolymers containing 4,4'-bis(p-aminophenoxy)biphenyl and (U.S. Patent No. 4975331). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4975331
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile