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. 11, 2015
Filed:
Sep. 08, 2009
Applicants:
Ronald J. Lenk, Woodstock, GA (US);
Carol Lenk, Woodstock, GA (US);
Ethan Thorman, Palo Alto, CA (US);
Inventors:
Ronald J. Lenk, Woodstock, GA (US);
Carol Lenk, Woodstock, GA (US);
Ethan Thorman, Palo Alto, CA (US);
Assignee:
Switch Bulb Company, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0893 (2013.01);
Abstract
An LED light bulb which turns itself permanently off when it reaches the end of its useful life, and more particularly, to a scheme which slightly varies the end-of-life condition from unit to unit.