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:
Apr. 04, 1978
Filed:
Feb. 02, 1977
Applicant:
Inventors:
John J Driscoll, Andover, MA (US);
Thomas A Svatek, Carlisle, MA (US);
Richard R Wareham, Marblehead, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
355 27 ; 354 78 ; 355 45 ; 355 65 ;
Abstract
A slide viewer/copier operable in a viewing mode for projecting an image of a slide transparency film unit onto a viewing screen for viewing and a copy mode for projecting an image of the slide onto self-developing film unit for exposure and for processing the film unit to produce a photographic copy of the slide.