Granted Patent
Utility
US 5,250,768 · App. 07/822,350
Float switch with snap action member
Inventor:
Robert A. Van Fossen
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Jan 17, 1992
Inventor
Robert A. Van Fossen
Assignee (at issue)
Johnson Service 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.