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:
Nov. 28, 1989
Filed:
Nov. 21, 1988
Applicant:
Inventor:
Donald E Mauchan, Marlboro, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354 86 ; 354288 ; 354210 ;
Abstract
A kit for converting a conventional 35 mm camera for use with instant or self-developing transparency film assemblages. The kit includes a camera loading door defining a lighttight film withdrawal slot, and a spread roller assembly. The spread roller assembly has a generally cylindrical external configuration which approximates that of a standard 35 mm film cassette. The spread roller assembly cooperates with a film cassette supply chamber in the camera for properly orientating the spread roller assembly relative thereto and to the self-developing film assemblage.