Granted Patent
Utility
US 5,155,460 · App. 07/663,114
Switch housing with magnetic roller plunger
Inventors:
Charles M. Huckins, Robert H. Niemeyer, III, Keith E. Flint
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Mar 1, 1991
Inventors
Charles M. Huckins
Robert H. Niemeyer, III
Keith E. Flint
Assignee (at issue)
Sentrol, 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.