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:
Aug. 19, 1980
Filed:
Nov. 01, 1978
Applicant:
Inventors:
Patricia A Antonoplos, Houston, TX (US);
Clarence D Bertino, Houston, TX (US);
William J Heilman, Houston, TX (US);
Assignee:
Gulf Oil Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528126 ; 2603 / ; 2603 / ; 2603 / ; 526259 ; 526285 ; 528125 ; 528128 ; 528170 ; 528172 ; 528179 ; 528187 ; 528188 ; 528192 ; 528220 ; 528222 ; 528226 ; 528229 ; 528323 ; 528351 ; 528352 ; 528353 ; 560 11 ; 560 18 ; 560 19 ; 560 45 ; 560 47 ; 560 52 ; 560 64 ; 560 65 ; 560 66 ; 560 76 ;
Abstract
Acetylene end-capped polyimide oligomers are prepared by a process including the following sequential steps: