Granted Patent
Utility
US 5,879,088 · App. 08/976,980
Computer keyboard with adjustable force keystroke feature using air pressure
Inventor:
George P. English
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Nov 24, 1997
Inventor
George P. English
Assignee (at issue)
Key Tronic 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.