Granted Patent
Utility
US 5,241,738 · App. 08/002,104
Method of making a composite casting
Inventor:
Gregory N. Colvin
Patented Case
View Patent ↗
Granted: Sep 7, 1993
Filed: Jan 8, 1993
Inventor
Gregory N. Colvin
Assignee (at issue)
HOWMET CORPORATION
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.