Granted Patent
Utility
US 5,110,189 · App. 07/614,703
Redundant remote control system used on a continuous miner and method of using same
Inventor:
Marvin L. Haines
Patented Case
View Patent ↗
Granted: May 5, 1992
Filed: Nov 16, 1990
Inventor
Marvin L. Haines
Assignee (at issue)
Tamrock World Corporation, N.V.
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.