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:
Mar. 17, 1998
Filed:
Sep. 19, 1995
Applicant:
Inventor:
Alfredo G Kniazzeh, West Newton, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156324 ; 156555 ; 100 / ; 100176 ; 492 27 ; 492 56 ;
Abstract
A laminating roll for laminating a layer of protective coating to an image-bearing layer, has a generally cylindrical metallic core and a generally cylindrical compliant and resilient covering surrounding the core. The core and covering both having positive crowns such that the diameter of the outer surfaces of the core and covering measured at central portions thereof are respectively greater than the diameters measured at end portions thereof. The differences between the diameters of the core at central and end portions of the core is greater than that of the covering. The thickness of the covering increases from the center to the ends of the roll.