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. 06, 1988
Filed:
Dec. 14, 1987
Applicant:
Inventors:
Geneva Ambrose-Ritchey, Columbia, MD (US);
Felek Jachimowicz, Columbia, MD (US);
Joseph T Lundquist, Jessup, MD (US);
Assignee:
W. R. Grace & Co.-Conn., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429144 ; 429254 ;
Abstract
A sheet product useful as a battery separator which is formed from a cationic polymer membrane free of hydrolyzable groups and, preferably, is part of a multi-ply sheet product composed of at least one ply of the cationic membrane and at least one ply of a microporous polyolefin sheet.
Ambrose-Ritchey, Geneva. (1988). Battery separator (U.S. Patent No. 4789609). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4789609
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile