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:
Jun. 13, 1978
Filed:
Apr. 14, 1977
Applicant:
Inventor:
William James Hannan, Concord, MA (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G03C / ;
U.S. Cl.
CPC ...
3501 / ; 352233 ; 352238 ; 352239 ; 428 29 ;
Abstract
Each one of three filters, corresponding to different primary subtractive colors of a color picture, is embossed as a relief pattern on the same side of a plastic film within a separate one of any three of four side-by-side regions into which the film is divided. This permits the film to be thrice-folded to both (1) superimpose the three filters substantially in registration with each other and (2) place the embossed side of the film within the interior of the thrice-folded film where said filters are protected.