Granted Patent
Utility
US 5,670,990 · App. 08/183,897
Integral ball cage for pointing device
Inventors:
Marc Bidiville, Kieran Devey, Denes Karai
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Jan 21, 1994
Inventors
Marc Bidiville
Kieran Devey
Denes Karai
Assignee (at issue)
LOGITECH, 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.