Granted Patent
Utility
US 5,261,729 · App. 07/795,314
Apparatus for continuous mining
Inventors:
Larry C. Addington, Robert R. Addington, Larry M. Addington, Albert E. Lynch, John Susla, David L. Conley, John J. Sartaine, David E. Price
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: Nov 20, 1991
Inventors
Larry C. Addington
Robert R. Addington
Larry M. Addington
Albert E. Lynch
John Susla
David L. Conley
John J. Sartaine
David E. Price
Assignee (at issue)
Mining Technologies, 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.