Granted Patent
Utility
US 5,735,155 · App. 08/735,662
Method for manufacturing patterned tread plates
Inventors:
William C. Morton, Jeffery W. Covert
Patented Case
View Patent ↗
Granted: Apr 7, 1998
Filed: Oct 24, 1996
Inventors
William C. Morton
Jeffery W. Covert
Assignee (at issue)
Morton Manufacturing Company
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.