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:
Apr. 20, 1976
Filed:
May. 24, 1974
Fred F Holub, Schenectady, NY (US);
Jan Walter Szymaszek, Schenectady, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A photoflash unit is designed to have a plurality of lamps fired individually and in sequence includes a plurality of switching devices capable of being easily activated by radiant energy generated during flashing of the lamps. Initially, the switches have a high resistance ('off' position) and after being activated by radiation, they undergo a chemical change to a conductive state ('on' position). The switches are prepared from compositions which impart improved shelf life under conditions of high relative humidity and include a light absorbing, heat transmitting protective coating having absorption characteristics in the range of 3000-5500 A.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile