Granted Patent
Utility
US 4,874,385 · App. 07/133,302
Plunger lock device
Inventors:
John Moran, Richard W. Gilson, Thomas W. Heubel
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Dec 16, 1987
Inventors
John Moran
Richard W. Gilson
Thomas W. Heubel
Assignee (at issue)
Sherwood Medical 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.