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:
May. 14, 1985
Filed:
May. 02, 1984
Richard C Kee, Chestnut Hill, MA (US);
Philip R Norris, No. Reading, MA (US);
Polaroid Corporation, Cambridge, MA (US);
Abstract
A photographic film assemblage including a film cassette having a film spool rotatably supported therein, and a length of self-developing type film coiled about the spool with one of its ends secured to the spool and its other end extending to the exterior of the film cassette for subsequent attachment to a film take-up member of a camera. The spool includes a cylinder and a piston mounted for reciprocating movement within the cylinder. Also located within the cylinder is a supply of processing fluid. After the film has been exposed and rewound into the cassette, the piston is moved deeper into the cylinder to cause the processing fluid to move from the cylinder into an annular chamber which surrounds the cylinder and which contains the film, where it initiates the formation of visible images within the film.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile