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:
Aug. 02, 1977
Filed:
Apr. 20, 1976
Applicant:
Inventor:
Anil K Jain, Eagleville, PA (US);
Assignee:
ICI United States Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
3501 / ; 356246 ;
Abstract
Optical devices and especially electrochromic devices comprising a sealed cell containing an aqueous medium and having a pair of opposed walls, at least one of which is transparent. Breakage due to freezing is minimized by providing a cell in which one of the walls is dished, having a main portion which is parallel to the other wall and a sloping peripheral portion surrounding the main portion and intersecting the other wall at an angle not greater than 30.degree..
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Jain, Anil. (1977). Optical display having dished cover plate (U.S. Patent No. 4039253). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4039253
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile