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 8911134 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 16, 2014

Filed:

Jun. 09, 2011
Applicant:

Georgiana Hsu, Bronx, NY (US);

Inventor:

Georgiana Hsu, Bronx, NY (US);

Assignee:

DeNovo Lighting, LLC, Flushing, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01); G09F 13/06 (2006.01); G08B 7/06 (2006.01); G09F 13/18 (2006.01); G09F 13/22 (2006.01); G09F 13/04 (2006.01);
U.S. Cl.
CPC ...
G09F 13/06 (2013.01); G08B 7/062 (2013.01); G09F 13/18 (2013.01); G09F 13/22 (2013.01); G09F 2013/0459 (2013.01); G09F 2013/1854 (2013.01); G09F 2013/222 (2013.01);
Abstract

An exit sign comprising a housing, a plurality of green color LEDs and red color LEDs or bicolor green and red color LEDs positioned in the housing for emitting both a green color light and a red color light with a filter holder for holding a selected green color filter or a selected red color filter for passing the selected green color light or selected red color light to a stencil having openings for passing the selected green color light or selected red color light to an observer. Yellow color LEDs can be alternatively positioned in the housing for emitting yellow color light comprising both green color light and red color light. White color LEDs can also be alternatively positioned in the housing for emitting white color light also comprising both green color light and red color light.


Find Patent Forward Citations

Hsu, Georgiana. (2014). Exit sign illuminated by color leds (U.S. Patent No. 8911134). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8911134

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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