Granted Patent
Utility
US 5,914,709 · App. 08/818,774
User input device for a computer system
Inventors:
David Graham, Daniel Francis
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: Mar 14, 1997
Inventors
David Graham
Daniel Francis
Assignee (at issue)
Poa Sana, 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.