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:
Aug. 07, 1979
Filed:
Nov. 11, 1977
Applicant:
Inventor:
Edward F Sherwood, Gettysburg, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V / ; F21V / ; F21S / ; F21S / ; F21S / ; F21S / ; F21V / ; F21V / ;
U.S. Cl.
CPC ...
362148 ; 52 28 ; 362330 ; 362331 ; 362365 ; 362367 ; 362404 ; 362408 ; 362455 ; 362456 ; 362806 ;
Abstract
A decorative drop ceiling including a panel having a plurality of openings therein disposed between a source of light and an area to be illuminated. A light transmissive lens is disposed in each of the openings. Each lens has a predetermined thickness dimension, which is not dictated by the thickness of the panel. The lower face of each lens is co-planar with the lower surface of the panel. The periphery of the lens is recessed, and fasteners, disposed in the recess, fix the lens in the opening.
Quick Actions:
Sherwood, Edward. (1979). Decorative drop ceiling (U.S. Patent No. 4164011). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4164011
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile