Granted Patent
Utility
US 6,693,858 · App. 09/814,236
Data cartridge detector
Inventors:
Kelly J. Reasoner, Richard A. Irwin, Gregg S. Schmidtke
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: Mar 21, 2001
Inventors
Kelly J. Reasoner
Richard A. Irwin
Gregg S. Schmidtke
Assignee (at issue)
Hewlett-Packard Development Company, L.P.
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.