Granted Patent
Utility
US 4,491,168 · App. 06/498,537
Wear resistant insert for cast lightweighted pistons and method of casting
Inventor:
David J. Snee
Patented Case
View Patent ↗
Granted: Jan 1, 1985
Filed: May 26, 1983
Inventor
David J. Snee
Assignee (at issue)
Imperial Clevite 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.