Granted Patent
Utility
US 6,095,643 · App. 09/074,215
Refillable disposable inkjet cartridge with foam-filled and free ink reservoirs
Inventors:
William Paul Cook, Gary Allen Denton
Patented Case
View Patent ↗
Granted: Aug 1, 2000
Filed: May 7, 1998
Inventors
William Paul Cook
Gary Allen Denton
Assignee (at issue)
Lexmark International, Inc.
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.