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 RE44974 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 30, 2014

Filed:

Nov. 06, 2012
Applicant:

Samsung Electronics Co., Ltd., Gyeonggi-do, KR;

Inventors:

Yu-Sheop Lee, Gyeonggi-do, KR;

Sun-Tae Jung, Gyeonggi-do, KR;

Joo-Hoon Lee, Gyeonggi-do, KR;

Assignee:

Samsung Electronics Co., Ltd., Yeongtong-gu, Suwon-si, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 9/00 (2005.12);
U.S. Cl.
CPC ...
Abstract

Disclosed is a keypad assembly including a light guide panel, light, at least one light extracting pattern provided on the light guide panel so that light propagating inside the light guide panel is directed out of the light guide panel, a switch board having at least one switch; and at least one light source for coupling light to the inside of the light guide panel, wherein the light guide panel has a thickness of 0.03-0.6 mm.


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