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. 21, 1984
Filed:
Jan. 31, 1983
Applicant:
Inventors:
Norman W Schuler, Hyde Park, MA (US);
Gary T Scupp, Walpole, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350398 ;
Abstract
A light polarizer element comprising a unitary film of molecularly oriented polymeric material exhibiting a pattern of dichroic stained areas, at least one of the pattern areas thereof formed by bleaching a first dichroic dye from the film and then restaining the at least one bleached area with a second, different, dichroic dye.