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:
Feb. 21, 1989
Filed:
Feb. 04, 1988
Applicant:
Inventors:
Ritchie A Wessling, Midland, MI (US);
Jang-hi Im, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 48 ; 429 50 ; 429118 ; 429194 ; 429249 ;
Abstract
There is disclosed a separator medium for fluid-activated primary electrochemical battery cells of the reserve type. The separator medium comprises a thin, substantially impermeable film of a Lewis base polymer which is soluble in the activating electrolyte solution.