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:
Nov. 08, 1977
Filed:
Mar. 12, 1976
Applicant:
Inventors:
Luc Achiel De brabandere, Mortsel, BE;
Robert Joseph Pollet, Vremde, BE;
Herman Alberik Pattyn, Kapellen, BE;
Hendrik Alfons Borginon, Mortsel, BE;
Assignee:
AGFA-GEVAERT, N. V., Mortsel, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; B01J / ;
U.S. Cl.
CPC ...
96 9 / ; 961147 ; 2329 / ;
Abstract
In the preparation of silver halide emulsions silver halide grain-growth is accelerated by the addition to the precipitation medium during or before silver halide precipitation of a compound of the formula ##STR1## wherein: N IS AN INTEGER FROM 1 TO 5