Granted Patent
Utility
US 6,102,388 · App. 09/129,616
Envelope feeder
Inventor:
William Joseph Thornhill
Patented Case
View Patent ↗
Granted: Aug 15, 2000
Filed: Aug 5, 1998
Inventor
William Joseph Thornhill
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.