Granted Patent
Utility
US 5,496,004 · App. 08/516,504
Direct support frog assembly
Inventor:
Stephen R. Kuhn
Patented Case
View Patent ↗
Granted: Mar 5, 1996
Filed: Aug 17, 1995
Inventor
Stephen R. Kuhn
Assignee (at issue)
ABC Rail Products Corporation
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.