Granted Patent
Utility
US 5,284,620 · App. 07/696,184
Investment casting a titanium aluminide article having net or near-net shape
Inventor:
Donald E. Larsen, Jr.
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Dec 11, 1990
Inventor
Donald E. Larsen, Jr.
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.