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:
Dec. 13, 2011
Filed:
Dec. 03, 2008
Applicants:
David W. Knoble, Tupelo, MS (US);
Khosrow Jamasbi, Belden, MS (US);
Inventors:
David W. Knoble, Tupelo, MS (US);
Khosrow Jamasbi, Belden, MS (US);
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An emergency sign power supply with battery charger is provided. In some embodiments the battery charging circuit is formed by a single diode and a single resistor.