Granted Patent
Utility
US 5,289,212 · App. 07/885,600
Air vent for an ink supply cartridge in a thermal ink-jet printer
Inventor:
Michael Carlotta
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: May 19, 1992
Inventor
Michael Carlotta
Assignee (at issue)
Xerox 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.