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:
Jul. 25, 1978
Filed:
Sep. 02, 1977
Applicant:
Inventors:
Frank J Williams, III, Scotia, NY (US);
Paul E Donahue, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603463 ;
Abstract
There are provided bis(sulfone) aromatic dianhydrides and methods for making these materials. These aromatic disulfone dianhydrides can be used to make polyimides and polyesters, and can be used as curing agents for epoxy resins.
Williams, III, Frank. (1978). Aromatic disulfone dianhydrides (U.S. Patent No. 4102905). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4102905
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile