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. 17, 1978
Filed:
Oct. 01, 1976
Applicant:
Inventor:
Martin Dotsko, Binghamton, NY (US);
Assignee:
The Singer Company, Binghamton, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
350126 ;
Abstract
A cellulose acetate butyrate lacquer film containing minute beads of the clear lacquer is backed by a reflective surface, to form a high resolution front projection screen of selective gain. The gain of the screen depends upon the thickness of the lacquer film and the reflectivity of the backing member.