Granted Patent
Utility
US 5,451,938 · App. 08/141,840
RF meter reading system
Inventor:
William J. Brennan
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Oct 22, 1993
Inventor
William J. Brennan
Assignee (at issue)
Schlumberger Industires, S.A.
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.