Granted Patent
Utility
US 6,190,605 · App. 09/402,525
Dry die wall lubrication
Inventors:
Terry M. Cadle, Joel H. Mandel, Paul R. Roskopf
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Dec 21, 1999
Inventors
Terry M. Cadle
Joel H. Mandel
Paul R. Roskopf
Assignee (at issue)
Zenith Sintered Products, Inc.
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.