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 7396140 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 08, 2008

Filed:

Jan. 13, 2005
Applicant:

Jianping Cai, Shunde, Guandong, CN;

Inventor:

Jianping Cai, Shunde, Guandong, CN;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A portable reading lamp of the invention comprises a base, a head portion and a pole to connect the base with the head portion. The head portion is provided with the luminant, which is semiconductor LED. A battery box is provided on the base, the head portion or the pole for supplying direct current. The semiconductor LED is used as the luminant in the invention, so the reading lamp of the invention can save energy in high-efficiency (10% electricity consumption of the traditional reading lamp), which also has the following strongpoint: saturated color and ray, infinite motley, switching rapidly, unpolluted, shock-resistant, dampness-resistant, long usage life (100,000 hours), radiation-free and less maintenance. The invention also provides a battery box in the base for supplying direct current, which is very convenient to be used in the field when no external power source can be used.


Find Patent Forward Citations

Cai, Jianping. (2008). Portable reading lamp (U.S. Patent No. 7396140). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7396140

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

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