Granted Patent
Utility
US 5,224,588 · App. 07/868,605
Plunger switch providing relief for an excess plunger load
Inventor:
Stephen J. Cook
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Apr 14, 1992
Inventor
Stephen J. Cook
Assignee (at issue)
Ford Motor Company
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.