Granted Patent
Utility
US 4,400,596 · App. 06/339,558
Membrane switch with sequentially closable contacts
Inventors:
Kazutoyo Fukukura, William J. Lynn
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: Jan 15, 1982
Inventors
Kazutoyo Fukukura
William J. Lynn
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.