Granted Patent
Utility
US 5,192,116 · App. 07/706,402
Gantry-type mobile mining machine
Inventors:
John Turner, Neil J. Dahmen
Patented Case
View Patent ↗
Granted: Mar 9, 1993
Filed: May 28, 1991
Inventors
John Turner
Neil J. Dahmen
Assignee (at issue)
Robbins, 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.