Granted Patent
Utility
US 5,686,228 · App. 08/805,490
Substituted propenitrile compounds as antifoggants for black-and-white photothermographic and thermographic elements
Inventors:
Thomas James Murray, Paul G. Skoug
Patented Case
View Patent ↗
Granted: Nov 11, 1997
Filed: Feb 25, 1997
Inventors
Thomas James Murray
Paul G. Skoug
Assignee (at issue)
Imation Corp.
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.