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. 26, 1978
Filed:
Apr. 27, 1977
Applicant:
Inventor:
Marshall Leibowitz, Ridgefield, CT (US);
Assignee:
Timex Corporation, Waterbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350356 ;
Abstract
An electrochromic display device in layered form having a first transparent substrate with a selectively actuable transparent electrode thereon and a first electrochromic layer on said transparent electrode, in combination with a counterelectrode having a second electrochromic layer thereon, and a solid electrolyte-separator layer between said first and said second electrochromic layers, said electrolyte-separator being comprised of a cationic ion exchange resin, specifically, a membrane of the acid form of a soluble polystyrene sulfonic acid polymer chemically wetted with water.