Granted Patent
Utility
US 5,491,059 · App. 08/331,683
Silver carboxylate compounds as silver sources in photothermographic and thermographic elements
Inventor:
David R. Whitcomb
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Oct 31, 1994
Inventor
David R. Whitcomb
Assignee (at issue)
Minnesota Mining and Manufacturing Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.