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. 13, 1983
Filed:
Feb. 18, 1982
Applicant:
Inventor:
Bruce A Ferguson, Hinsdale, IL (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
F21S / ;
U.S. Cl.
CPC ...
362222 ; 362 97 ; 362223 ; 362225 ; 362231 ; 362249 ; 362251 ; 362252 ; 362260 ; 362295 ; 362311 ; 362375 ; 362396 ;
Abstract
An illuminator or light box having the ability to provide varying degrees of light intensity or illumination to the screen. At least two sets of bulbs are mounted within the light box. Each set is identical to the other set and is comprised of different light bulbs. There are control switches to energize the same light bulb of each set. Different colored light bulbs can comprise the sets thereby allowing the user to selectively energize the lamps available to supply various colors to illuminate the screen.
Ferguson, Bruce. (1983). Illuminator box (U.S. Patent No. 4404619). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4404619
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile