Granted Patent
Utility
US 5,687,814 · App. 08/499,322
Assembly for applying one or more materials to a rail
Inventors:
Jeffrey P. Craig, William T. Urmson, Jr., Dennis J. Bell
Patented Case
View Patent ↗
Granted: Nov 18, 1997
Filed: Jul 7, 1995
Inventors
Jeffrey P. Craig
William T. Urmson, Jr.
Dennis J. Bell
Assignee (at issue)
Portec Inc., RMP Division
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.