Granted Patent
Utility
US 4,646,831 · App. 06/650,665
Precision connector for well instrumentation
Inventors:
John L. Marsh, Edward C. Fraser, Louis H. Rorden, William H. Bauer
Patented Case
View Patent ↗
Granted: Mar 3, 1987
Filed: Sep 14, 1984
Inventors
John L. Marsh
Edward C. Fraser
Louis H. Rorden
William H. Bauer
Assignee (at issue)
Develco, 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.