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. 07, 1999
Filed:
Sep. 20, 1996
Myron H Frommer, Monsey, NY (US);
David J Haas, Suffern, NY (US);
Temtec, Inc., Suffern, NY (US);
Abstract
A security system is provided that includes a time dependant security badge to be worn by a person. The security badge includes a metalized reflective film having an upper surface and lower surface, the upper surface having an initial reflectivity. An oxidizing film for electrochemically oxidizing the initial metalized reflective surface to a final reflectivity after the passage of a predetermined period of time is placed in contact with the lower surface of the metalized film. The badge is illuminated with a predetermined wavelength of light and then scanned, e.g., with a CCTV, to detect the reflectivity of the upper surface of the metalized reflective film to signal an initial security status of the person when it detects the initial reflectivity of the metalized reflective film and to signal a final security status of the person when it detects the final reflectivity of the metalized reflective film.