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:
Oct. 15, 1991
Filed:
Mar. 13, 1991
Applicant:
Inventor:
David M Kelley, Fenton, MO (US);
Assignee:
K-S-H, Inc., St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V / ; F21V / ;
U.S. Cl.
CPC ...
362330 ; 362339 ;
Abstract
A prismatic lighting panel of very low weight (less than four ounces per square foot), high strength, and good optical characteristics includes a grid of depending thin ribs on one inch centers, and a web of microprisms between the ribs.