Granted Patent
Utility
US 4,947,460 · App. 07/321,434
Cursor for an inductive sensor for use with a digitizer board
Inventors:
Wolfgang Jacob-Grinschgl, Udo Muller
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Mar 9, 1989
Inventors
Wolfgang Jacob-Grinschgl
Udo Muller
Assignee (at issue)
Kon-Tron Elektronik AG
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.