Granted Patent
Utility
US 6,167,813 · App. 09/152,545
Tapered wear liner and articulated connector with tapered wear liner
Inventors:
Horst T. Kaufhold, John J. Steffen
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Sep 14, 1998
Inventors
Horst T. Kaufhold
John J. Steffen
Assignee (at issue)
AMSTED INDUSTRIES INCORPORATED
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.