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:
May. 09, 2000
Filed:
Apr. 02, 1998
Applicant:
Inventor:
Misao Iwatare, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 53 ; 429 72 ; 429 82 ; 429175 ;
Abstract
A casing for a battery of the present invention is made up of a top-open box and a lid closing the open top of the box. The lid has a pyramidal top portion formed with a plurality of vent holes for allowing a gas to pass therethrough. A polymeric osmotic film allowing a gas to pass therethrough, but intercepting water, is fitted in each of the vent holes. The casing therefore vents hydrogen output from a battery while preventing water from entering it.
Iwatare, Misao. (2000). Casing for a battery (U.S. Patent No. 6060191). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6060191
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile