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. 10, 2007
Filed:
Feb. 10, 2006
Applicants:
Doreen C. Lynch, Afton, MN (US);
William D. Ramsden, Afton, MN (US);
Andrea L. Hansen, Woodbury, MN (US);
Stacy M. Ulrich, Dresser, WI (US);
Inventors:
Doreen C. Lynch, Afton, MN (US);
William D. Ramsden, Afton, MN (US);
Andrea L. Hansen, Woodbury, MN (US);
Stacy M. Ulrich, Dresser, WI (US);
Assignee:
Carestream Health, Inc., Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C 5/16 (2006.01); G03C 1/498 (2006.01);
U.S. Cl.
CPC ...
Abstract
Bis phenol reducing agents incorporating bicyclic and tricyclic substituents ortho to the hydroxyl groups on the aromatic rings have been found to provide photothermographic materials with improved silver efficiency and stability without significant loss in sensitometric properties.