Granted Patent
Utility
US 5,921,333 · App. 08/906,778
Casting having in-situ cast inserts and method of manufacturing
Inventor:
Paul Hewitt
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Aug 6, 1997
Inventor
Paul Hewitt
Assignee (at issue)
NACO, 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.