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:
Mar. 09, 2004
Filed:
Feb. 14, 2002
Applicant:
Inventor:
Jerry Zucker, Charleston, SC (US);
Assignee:
Daramic, Inc., North Charleston, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 ;
U.S. Cl.
CPC ...
H01M 2/16 ;
Abstract
The invention concerns a battery separator comprising at least one first fibrous layer, at least one second fibrous layer, and at least one microporous polymer layer which is sandwiched between at least two fibrous layers, wherein the microporous polymer layer has an average pore size of less than 1 &mgr;m and wherein the at least one first fibrous layer has a thickness of at least 0.6 mm.