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. 16, 1976
Filed:
May. 13, 1974
Applicant:
Inventor:
Boris Levy, Wayland, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B32B / ;
U.S. Cl.
CPC ...
428409 ; 428412 ; 428457 ; 428474 ; 428480 ; 428523 ; 427 40 ; 427 41 ; 427414 ;
Abstract
The characteristics of the surface of an article may be modified, e.g., in respect to adhesion, wettability or other physical characteristics, by exposing the surface to an electrical discharge in a mixture of certain gases. The practice of this invention is particularly useful in improving the gelatin adherence characteristics of a photographic film base support.