Granted Patent
Utility
US 5,078,010 · App. 07/568,490
Inductance level sensing device
Inventor:
Graham D. Lock
Patented Case
View Patent ↗
Granted: Jan 7, 1992
Filed: Aug 16, 1990
Inventor
Graham D. Lock
Assignee (at issue)
Emhart 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.