Granted Patent
Utility
US 6,093,528 · App. 09/140,949
Reducing agents for use in thermographic recording materials
Inventors:
David Terrell, Johan Loccufier, Geert Defieuw, Ivan Hoogmartens
Patented Case
View Patent ↗
Granted: Jul 25, 2000
Filed: Aug 27, 1998
Inventors
David Terrell
Johan Loccufier
Geert Defieuw
Ivan Hoogmartens
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.