Granted Patent
Utility
US 6,580,418 · App. 09/515,967
Three degree of freedom mechanism for input devices
Inventors:
Donald C. Grome, Kurt Torben Nielsen
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Feb 29, 2000
Inventors
Donald C. Grome
Kurt Torben Nielsen
Assignee (at issue)
Microsoft 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.