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:
Jul. 08, 2003
Filed:
Aug. 26, 2002
Applicant:
Inventors:
Corey Billington, San Jose, CA (US);
Chris Bradley, Redwood City, CA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 2/118 ;
U.S. Cl.
CPC ...
G03B 2/118 ;
Abstract
A cool-down system for portable projectors including a battery configured to power a cooling fan, if power to the cooling fan is cut off before the device has cooled down sufficiently to prevent degradation of one or more components.