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:
Apr. 14, 1981
Filed:
Sep. 20, 1979
Applicant:
Inventors:
Angelo Vallarino, Spotorno, IT;
Alberto Valsecchi, Ferrania, IT;
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430514 ; 430515 ; 430516 ; 430517 ;
Abstract
A photographic material containing a removable antihalo layer comprising an antihalo agent and a mixture of two copolymers of a low alkymethacrylate and acrylic or methacrylic acid.