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. 21, 2012
Filed:
Jun. 08, 2010
Applicant:
Huo-lu Tsai, Taichung Hsien, TW;
Inventor:
Huo-Lu Tsai, Taichung Hsien, TW;
Assignee:
Sunrex Technology Corp, Taichung, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 13/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
A back lighted membrane keyboard includes a key housing, a membrane, a key support plate, a membrane circuit board, an insulative plate, a light guide membrane plate, and a base plate. The key housing, the membrane, the key support plate, the membrane circuit board, the insulative plate, and the light guide membrane plate are aligned by inserting stems thereinto. Eventually, these components are subjected to ultrasonic welding to be bound together.