Granted Patent
Utility
US 6,146,821 · App. 09/098,973
(Photo) thermographic material with a blue background
Inventor:
Hans Strijckers
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Jun 17, 1998
Inventor
Hans Strijckers
Assignee (at issue)
Agfa-Gevaert NV
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.