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:
Jul. 18, 1989
Filed:
May. 26, 1988
Applicant:
Inventor:
Ivano Delprato, Savona, IT;
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
430551 ; 430570 ; 430611 ; 430614 ; 548151 ;
Abstract
Benzo-bis-thiazole quaternary salts having attached to at least one quaternary nitrogen atom thereof an alkenyl group carrying a double bond in the .beta.-position and their use as antifogging agents in silver halide light-sensitive materials.