Granted Patent
Utility
US 4,819,967 · App. 06/466,236
Conductor tieback connector
Inventors:
Ian Calder, Stephen A. Cromar
Patented Case
View Patent ↗
Granted: Apr 11, 1989
Filed: Feb 14, 1983
Inventors
Ian Calder
Stephen A. Cromar
Assignee (at issue)
Vetco Gray, LLC
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.