Granted Patent
Utility
US 5,329,983 · App. 07/773,192
Sealed chamber die castings of metal matrix components
Inventor:
Arnold J. Cook
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Oct 8, 1991
Inventor
Arnold J. Cook
Assignee (at issue)
Arnold J. Cook
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.