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:
Jun. 02, 1981
Filed:
Nov. 30, 1979
Applicant:
Inventor:
Hans Dressler, Pittsburgh, PA (US);
Assignee:
Koppers Company, Inc., Pittsburgh, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528175 ; 528391 ;
Abstract
A linear aryl sulfide/sulfonate polymer having improved thermal stability is provided consisting essentially of units of the formula: ##STR1## wherein n is an integer of from 3 to about 250.
Dressler, Hans. (1981). Aryl sulfide/sulfonate polymer (U.S. Patent No. 4271285). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4271285
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile