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. 09, 1989
Filed:
Sep. 08, 1987
Applicant:
Inventors:
Nicholas E Grzeskowiak, Harlow, GB;
Keith A Penfound, Saffron Walden, GB;
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430230 ; 430607 ; 430608 ; 430612 ; 430569 ; 430604 ; 430605 ; 430584 ; 430570 ; 430592 ; 430447 ;
Abstract
Photographic elements comprising a negative working silver halide emulsion containing high intensity reciprocity failure reducing amounts of dopant comprising both ruthenium and iridium ions.