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:
Jul. 09, 2002
Filed:
Jan. 31, 2000
Applicant:
Inventors:
Alfredo G. Kniazzeh, Waltham, MA (US);
Bruce K. Johnson, North Andover, MA (US);
Margaret A. Obermiller, Wayland, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 2/732 ; G03B 1/750 ; G03D 9/02 ;
U.S. Cl.
CPC ...
G03B 2/732 ; G03B 1/750 ; G03D 9/02 ;
Abstract
A photographic processing fluid spread system, for use with integral type self-processable film unit, by which the thickness of a layer of processing fluid is controlled and restricted in a uniform manner as the processing fluid is spread across preselected portions of the film unit, while the film unit is also simultaneously being progressively exposed and advanced.