Granted Patent
Utility
US 5,489,900 · App. 08/253,655
Force sensitive transducer for use in a computer keyboard
Inventors:
Matthew F. Cali, Jerome J. Cuomo, Donald Joseph Mikalsen, Joseph D. Rutledge, Edwin Joseph Selker
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: Jun 3, 1994
Inventors
Matthew F. Cali
Jerome J. Cuomo
Donald Joseph Mikalsen
Joseph D. Rutledge
Edwin Joseph Selker
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.