Granted Patent
Utility
US 4,634,491 · App. 06/747,225
Process for producing a single crystal article
Inventor:
Raymond C. Benn
Patented Case
View Patent ↗
Granted: Jan 6, 1987
Filed: Jun 21, 1985
Inventor
Raymond C. Benn
Assignee (at issue)
INCO Alloys International, 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.