Granted Patent
Utility
US 5,382,912 · App. 08/108,939
Resistance monitors
Inventor:
David Blain
Patented Case
View Patent ↗
Granted: Jan 17, 1995
Filed: Aug 19, 1993
Inventor
David Blain
Assignee (at issue)
Smiths Industries Public Limited 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.