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:
Sep. 04, 1990
Filed:
Feb. 08, 1989
Applicant:
Inventors:
Douglas S Hammond, Newark, OH (US);
Herbert A Odle, Newark, OH (US);
Assignee:
Holophane Company, Inc., Newark, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
362245 ; 362234 ; 362263 ; 362309 ; 362812 ; 40560 ;
Abstract
A new and improved lighting system for illuminating signs such as billboards and the like which increases the amount of light illuminating the light from a light source by 15 to 20% as compared with previous systems and decreases the variance of illumination intensity by 50%.