Granted Patent
Utility
US 5,202,944 · App. 07/708,977
Communication and power cable
Inventor:
Mathew B. Riordan
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: May 31, 1991
Inventor
Mathew B. Riordan
Assignee (at issue)
Westech Geophysical, 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.