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:
Dec. 20, 1983
Filed:
Mar. 01, 1982
Applicant:
Inventor:
John R Moses, Annapolis, MD (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09F / ;
U.S. Cl.
CPC ...
40570 ; 40544 ;
Abstract
An 'EXIT' sign utilizes a flat fluorescent lamp for illuminating the word 'EXIT' through a stencil. The sign also includes a phosphorescent material which cooperates with the stencil to display the word 'EXIT' when power to the lamp is cut.
Moses, John. (1983). Flat emergency exit sign utilizing an electro-illuminescent lamp (U.S. Patent No. 4420898). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4420898
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile