Granted Patent
Utility
US 6,311,971 · App. 09/611,126
Stacker controlling curl
Inventors:
David Emerson Greer, William Joseph Thornhill
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Jul 6, 2000
Inventors
David Emerson Greer
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.