Granted Patent
Utility
US 5,185,935 · App. 07/728,485
Method and apparatus for separation measurement and alignment system
Inventors:
Michael B. McMillion, Thomas R. Miller, Terry Koontz
Patented Case
View Patent ↗
Granted: Feb 16, 1993
Filed: Jul 11, 1991
Inventors
Michael B. McMillion
Thomas R. Miller
Terry Koontz
Assignee (at issue)
Consolidation Coal Company
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.