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:
Jan. 24, 1984
Filed:
Jul. 31, 1981
Applicant:
Inventors:
Assignee:
Nitto Electric Industrial Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428332 ; 350337 ; 350370 ; 427163 ; 428-1 ; 428339 ; 428411 ; 428412 ; 428419 ; 428480 ; 428483 ; 4284761 ; 4284763 ;
Abstract
A polarizing film comprising (a) a polarizer and (b) a film formed on at least one surface of the polarizer from a member selected from the group consisting of thermoplastic polycarbonates, polysulfones, polyethersulfones, polyesters, polyamides and poly(estercarbonate)s' and having a retardation .delta. of about 500 nm or less with the retardation .delta. being calculated by the following equation:
Aizawa, Kaoru. (1984). Polarizing film (U.S. Patent No. 4427741). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4427741
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile