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:
Dec. 05, 1995
Filed:
Jul. 11, 1994
Applicant:
Inventors:
Gunter Helling, Odenthal, DE;
Klaus Wagner, Bergisch Gladbach, DE;
Assignee:
Agfa-Gevaert AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430569 ; 430607 ; 430609 ; 430621 ; 430614 ; 430634 ; 430631 ; 430638 ;
Abstract
Silver halide emulsions with tabular grains showing increased aspect ratio are produced by adding to the precipitiation vessel a compound of the formula I: ##STR1## in which R.sub.1 means H or optionally substituted alkyl, aralkyl or cycloalkyl