Granted Patent
Utility
US 4,440,423 · App. 06/382,510
Control connector
Inventor:
John R. Pfeifler, II
Patented Case
View Patent ↗
Granted: Apr 3, 1984
Filed: May 27, 1982
Inventor
John R. Pfeifler, II
Assignee (at issue)
Vetco Offshore, 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.