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:
Jan. 06, 2015
Filed:
Nov. 10, 2010
Applicant:
Chao Chen, Waterloo, CA;
Inventor:
Chao Chen, Waterloo, CA;
Assignee:
BlackBerry Limited, Waterloo, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/02 (2006.01); H01H 13/82 (2006.01); H01H 13/85 (2006.01); G06F 1/16 (2006.01);
U.S. Cl.
CPC ...
G06F 1/1662 (2013.01); H01H 2219/062 (2013.01); H01H 2213/006 (2013.01); G06F 3/0202 (2013.01); H01H 2221/062 (2013.01); G06F 1/1626 (2013.01); H01H 2217/006 (2013.01);
Abstract
A keyboard includes a stiffener having a plurality of recesses defined therein, a flexible printed circuit defining a plurality of venting holes, each venting hole in correspondence with one of the plurality of recesses, and a dome sheet provided on top of the flexible printed circuit and including a plurality of domes, each of the domes in correspondence with one of the plurality of venting holes.