Granted Patent
Utility
US 5,486,847 · App. 07/994,973
Apparatus for a stylus input system for shielding RFI/EMI fields
Inventors:
Karl-Heinz Ranf, Jack R. Penrod
Patented Case
View Patent ↗
Granted: Jan 23, 1996
Filed: Dec 21, 1992
Inventors
Karl-Heinz Ranf
Jack R. Penrod
Assignee (at issue)
NCR 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.