Granted Patent
Utility
US 5,344,749 · App. 08/118,738
Filter dyes for rapid processing applications
Inventors:
Eric Kiekens, Paul Callant
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Sep 10, 1993
Inventors
Eric Kiekens
Paul Callant
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.