Granted Patent
Utility
US 5,037,465 · App. 07/622,421
Plunger mechanism with a self-contained positioning device
Inventor:
Geoffrey Moore
Patented Case
View Patent ↗
Granted: Aug 6, 1991
Filed: Dec 4, 1990
Inventor
Geoffrey Moore
Assignee (at issue)
Emhart Industries, Inc.
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.