Granted Patent
Utility
US 5,579,481 · App. 08/434,905
System and method for controlling data transfer between multiple interconnected computer systems with an untethered stylus
Inventor:
Bernard C. Drerup
Patented Case
View Patent ↗
Granted: Nov 26, 1996
Filed: May 1, 1995
Inventor
Bernard C. Drerup
Assignee (at issue)
International Business Machines 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.