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. 05, 1985
Filed:
Nov. 28, 1983
Applicant:
Inventor:
Akihiko Matsumaru, Ibaraki, JP;
Assignee:
Nippon Mektron Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 / ; 2001 / ;
Abstract
A membrane keyboard is presented wherein a series of slits are provided through the switch sheet and disposed above the switch motion cavity whereby the required actuating forces are decreased for switch operational areas of small size relative to those switch operational areas of larger size.