Granted Patent
Utility
US 4,507,055 · App. 06/514,621
System for automatically controlling intermittent pumping of a well
Inventors:
John C. Fair, Kenneth R. Ferguson
Patented Case
View Patent ↗
Granted: Mar 26, 1985
Filed: Jul 18, 1983
Inventors
John C. Fair
Kenneth R. Ferguson
Assignee (at issue)
Gulf Oil 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.