Granted Patent
Utility
US 5,701,253 · App. 08/416,251
Isolated current shunt transducer
Inventors:
Robert J. Mayell, Richard Alan Kramer
Patented Case
View Patent ↗
Granted: Dec 23, 1997
Filed: Apr 4, 1995
Inventors
Robert J. Mayell
Richard Alan Kramer
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.