Granted Patent
Utility
US 4,887,029 · App. 07/170,173
Mutual inductance current transducer, method of making and electric energy meter incorporating same
Inventor:
Rodney C. Hemminger
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Mar 18, 1988
Inventor
Rodney C. Hemminger
Assignee (at issue)
Westinghouse Electric Company LLC
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.