Granted Patent
Utility
US 5,450,078 · App. 07/958,246
Membrane computer keyboard and method
Inventors:
Michael Silva, Brian Lee, Arjan KHALSA, David Schmitt
Patented Case
View Patent ↗
Granted: Sep 12, 1995
Filed: Oct 8, 1992
Inventors
Michael Silva
Brian Lee
Arjan KHALSA
David Schmitt
Assignee (at issue)
Intellitools, 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.