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:
Jul. 17, 2012
Filed:
May. 20, 2010
Applicant:
Ching-cheng Tsai, Taipei Hsien, TW;
Inventor:
Ching-Cheng Tsai, Taipei Hsien, TW;
Assignee:
Chicony Electronic Co. Ltd., Taipei Hsien, TW;
Primary Examiner:
Int. Cl.
CPC ...
H01H 9/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A keyboard includes: a membrane circuit board comprising a plurality of switches; at least one keycap provided with a plurality of contact portions, each of which corresponding to one of the plurality of switches of the membrane circuit board; and a base plate provided with a plurality of openings each of which being positioned at a location corresponding to one of the plurality of switches of the membrane circuit board and one of the plurality of contact portions of the keycap, a buffering portion being formed at a corner adjoining the base plate and one of the plurality of openings.