Granted Patent
Utility
US 4,274,050 · App. 06/066,262
Voltage measuring apparatus
Inventor:
Thomas F. Martin
Patented Case
View Patent ↗
Granted: Jun 16, 1981
Filed: Aug 13, 1979
Inventor
Thomas F. Martin
Assignee (at issue)
Rockwell International Corporation
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.