Granted Patent
Utility
US 5,270,639 · App. 08/002,407
Time of use register for use with a utility meter
Inventor:
Lester C. Moore
Patented Case
View Patent ↗
Granted: Dec 14, 1993
Filed: Jan 8, 1993
Inventor
Lester C. Moore
Assignee (at issue)
Landis & Gyr Metering, Inc.
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.