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:
Aug. 26, 1986
Filed:
Jul. 02, 1985
Applicant:
Inventor:
Yuji Harada, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 / ; 2001 / ; 200308 ;
Abstract
A keyboard switch has a decoration sheet disposed above a printed circuit board in spaced relation thereto so that a flexible contact disposed between the printed circuit board and the decoration sheet can be moved into and out of contact with the printed circuit board by the depression of the decoration sheet. The decoration sheet is made of a material having a low extensibility, with recessed deforming areas that also serve as key symbols formed integrally with the decoration sheet.