Granted Patent
Utility
US 4,949,080 · App. 07/283,548
Computer keyboard control accessory
Inventor:
Peter J. Mikan
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Dec 12, 1988
Inventor
Peter J. Mikan
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.