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.:

US 7740390 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 22, 2010

Filed:

Nov. 16, 2007
Applicants:

Sian Tatt Lee, Penang, MY;

Eit Thian Yap, Penang, MY;

Choon Guan Ko, Penang, MY;

Fook Chuin NG, Butterworth, MY;

Inventors:

Sian Tatt Lee, Penang, MY;

Eit Thian Yap, Penang, MY;

Choon Guan Ko, Penang, MY;

Fook Chuin Ng, Butterworth, MY;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

An exemplary embodiment of a segmented light guide includes a light channeling layer having at least one slit dividing the light channeling layer into a plurality of segments, and at least one LED associated with the light channeling layer. The slit substantially prevents light from migrating in the segmented light guide between adjacent segments that are divided by the slit.


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Lee, Sian. (2010). Segmented light guide (U.S. Patent No. 7740390). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7740390

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