Granted Patent
Utility
US 5,642,143 · App. 08/629,794
Ink-jet hard copy apparatus having print cartridge biasing mechanism and cartridge loading method
Inventor:
W. Wistar Rhoads
Patented Case
View Patent ↗
Granted: Jun 24, 1997
Filed: Apr 9, 1996
Inventor
W. Wistar Rhoads
Assignee (at issue)
Hewlett-Packard 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.