Granted Patent
Utility
US 5,821,964 · App. 08/686,308
Cartridge for supplying liquid to a print head
Inventor:
Norman Bidwell
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Jul 24, 1996
Inventor
Norman Bidwell
Assignee (at issue)
Data Products 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.