Granted Patent
Utility
US 5,601,060 · App. 08/622,078
Cast oil pan for internal combustion engine
Inventors:
Richard A. Smietanski, Wayne R. Sidor
Patented Case
View Patent ↗
Granted: Feb 11, 1997
Filed: Mar 26, 1996
Inventors
Richard A. Smietanski
Wayne R. Sidor
Assignee (at issue)
Navistar International Transportation
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.