Granted Patent
Utility
US 4,356,358 · App. 06/279,289
Membrane switch
Inventor:
Kazutoyo Fukukura
Patented Case
View Patent ↗
Granted: Oct 26, 1982
Filed: Jul 1, 1981
Inventor
Kazutoyo Fukukura
Assignee (at issue)
AMP LLC
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.