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:
Feb. 24, 1998
Filed:
Sep. 13, 1996
Thomas H Campbell, Jr, Dedham, MA (US);
Edward H Coughlin, Norwood, MA (US);
Irving S Lippert, Lexington, MA (US);
Polaroid Corporation, Cambridge, MA (US);
Abstract
An instant photography camera can contain a combination of improved features including cleaning pads for continuous cleaning of spread rollers throughout the life of the camera, a flexible non-coiled film shade for preventing light piping along a film unit which is exiting the camera, and a dual independent spread control feature on a film cassette so that the same film cassette can be used in different cameras. The film cassette includes first and second spread control features for providing even spreading of processing liquid across a film unit; the first spread control feature used in a straight film track configuration, and the second spread control feature being used in a chute film track configuration.