Granted Patent
Utility
US 5,048,424 · App. 07/512,206
Tie replacer and method
Inventors:
Harry Madison, G. Robert Newman
Patented Case
View Patent ↗
Granted: Sep 17, 1991
Filed: Apr 20, 1990
Inventors
Harry Madison
G. Robert Newman
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.