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:
Feb. 03, 2004
Filed:
Aug. 29, 2002
Applicant:
Inventor:
Robert E. Clark, De Soto, KS (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21S 1/02 ; F21S 4/00 ; F21S 8/00 ; F21V 2/114 ; F21V 1/700 ;
U.S. Cl.
CPC ...
F21S 1/02 ; F21S 4/00 ; F21S 8/00 ; F21V 2/114 ; F21V 1/700 ;
Abstract
A light rope runs along the stringer of a stairway and is concealed by in-fill panels fitted into a groove on a frame rail running along the wall or stringer adjacent to the stairway. A light grille having a square frame and a patterned grille insert is seated along each tread adjacent to the next higher riser and is connected to the frame rail by a pair of adjustment arms. Translucent panels are mounted on the rear of the light grilles, allowing light to shine through them. Electrical circuitry turns the lights on when a user approaches the stairs and automatically turns the lights off after a predetermined time after the user has departed the area of the stairs.