Granted Patent
Utility
US 5,334,976 · App. 07/551,673
Keyboard with finger-actuable and stylus-actuable keys
Inventor:
An Wang
Patented Case
View Patent ↗
Granted: Aug 2, 1994
Filed: Jul 11, 1990
Inventor
An Wang
Assignee (at issue)
Wang Laboratories, 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.