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.

Date of Patent:
Feb. 15, 2011

Filed:

Jan. 22, 2008
Applicants:

Peter Andrew Jeffery, Huntington Beach, CA (US);

Jason Tsi-tsun Lin, Rosemead, CA (US);

Inventors:

Peter Andrew Jeffery, Huntington Beach, CA (US);

Jason Tsi-Tsun Lin, Rosemead, CA (US);

Assignee:

CoActive Technologies, Inc., Newton, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In an embodiment, a membrane switch may include a flexible light guide having a first refractive index. The flexible light guide may include a first wall, an opposing second wall, and one or more additional walls. One or more of the first wall, the second wall and the additional walls may be disposed adjacent to a substance including a second refractive index that is lower than the first refractive index.


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