Granted Patent
Utility
US 6,041,714 · App. 08/949,754
Statically dissipative, non-metallic center bowl liner for railroad cars
Inventors:
Robert S. Trent, Robert Manley
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Oct 14, 1997
Inventors
Robert S. Trent
Robert Manley
Assignee (at issue)
Holland, L.P.
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.