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:
Feb. 24, 1987
Filed:
Nov. 25, 1985
Applicant:
Inventors:
Abraham L Landis, Northridge, CA (US);
Arthur B Naselow, Marina del Rey, CA (US);
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528353 ; 528184 ; 528191 ;
Abstract
A solvent polycondensation process of preparing polyimides of high molecular weight from dianhydrides and relatively unreactive diamines, where the reaction is carried out in a cresol as a solvent.