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:
Jun. 09, 1981
Filed:
Apr. 03, 1980
Leonard V Bendoni, Framingham, MA (US);
Hugh L Smith, Brockton, MA (US);
Polaroid Corporation, Cambridge, MA (US);
Abstract
Apparatus for processing individual rolls of an exposed composite self-developing type transparency film structure. The composite film structure includes first and second sheets which are adapted to be located in superposed relation prior to having a processing liquid spread therebetween to initiate the formation of a visible image within the composite structure. The apparatus includes a first pair of rollers for withdrawing the first sheet and a portion of the second sheet from a film cassette, and a second pair of rollers which are adapted to advance the first and second sheets, in superposition, into a dark chamber while simultaneously spreading a processing liquid between and in contact with the sheets so as to initiate formation of the visible image in the composite film structure.