Granted Patent
Utility
US 5,939,249 · App. 08/881,407
Photothermographic element with iridium and copper doped silver halide grains
Inventor:
Chaofeng Zou
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Jun 24, 1997
Inventor
Chaofeng Zou
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.