Granted Patent
Utility
US 5,311,920 · App. 08/027,932
Method of forming a metal matrix component with internal and external structures
Inventor:
Arnold J. Cook
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: Mar 8, 1993
Inventor
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.