Granted Patent
Utility
US 6,297,924 · App. 09/191,889
System and method for cartridge detection and verification using signal comparison
Inventors:
Fred Charles Thomas, III, Todd L. Graves, Todd R. Shelton, Paul Smith
Patented Case
View Patent ↗
Granted: Oct 2, 2001
Filed: Nov 13, 1998
Inventors
Fred Charles Thomas, III
Todd L. Graves
Todd R. Shelton
Paul Smith
Assignee (at issue)
IO-Mega Holding Corporation
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.