Granted Patent
Utility
US 4,251,703 · App. 06/088,258
Pushbutton for use with pushbutton switches
Inventors:
Siegfried Hoeft, Gerhard Klause
Patented Case
View Patent ↗
Granted: Feb 17, 1981
Filed: Oct 25, 1979
Inventors
Siegfried Hoeft
Gerhard Klause
Assignee (at issue)
International Standard Electric 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.