Granted Patent
Utility
US 4,384,660 · App. 06/287,241
Tamper-proof clip for uplocking plungers of pump dispensers
Inventors:
John J. Palmisano, Donald D. Foster, Robert N. Hills
Patented Case
View Patent ↗
Granted: May 24, 1983
Filed: Jul 27, 1981
Inventors
John J. Palmisano
Donald D. Foster
Robert N. Hills
Assignee (at issue)
Realex 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.