Granted Patent
Utility
US 5,609,074 · App. 08/385,488
Unidirectional register for electricity meter
Inventor:
Norman B. Venaas
Patented Case
View Patent ↗
Granted: Mar 11, 1997
Filed: Feb 8, 1995
Inventor
Norman B. Venaas
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.