Granted Patent
Utility
US 5,305,692 · App. 07/913,161
Truck mounted tie exchanger with self-aligning tie clamp
Inventors:
Harry Madison, Robert F. Ryan, Michael B. Gilbert
Patented Case
View Patent ↗
Granted: Apr 26, 1994
Filed: Jul 14, 1992
Inventors
Harry Madison
Robert F. Ryan
Michael B. Gilbert
Assignee (at issue)
HARSCO 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.