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:
May. 31, 1983
Filed:
Sep. 04, 1981
Applicant:
Inventor:
Frederick G Schriever, Grosse Pointe Shores, MI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04H / ; G09G / ;
U.S. Cl.
CPC ...
116205 ; 52174 ; 340326 ; 340407 ; 340644 ;
Abstract
An emergency evacuation path marking system employing a series of devices, each device having the tactile characteristics of shape and surface contacts, in combination, to indicate direction and distance to the nearest evacuation exit; the shape providing direction information and the surface contacts providing distance information. The devices also being capable of luminescence to aid in visual as well as tactile reference.