Granted Patent
Utility
US 6,289,188 · App. 09/733,261
Non-leaking and easily remanufactured toner cartridge
Inventors:
Alan M. Litman, Anthony M. Vigliotti
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Dec 11, 2000
Inventors
Alan M. Litman
Anthony M. Vigliotti
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.