Granted Patent
Utility
US 4,746,378 · App. 06/930,062
Process for producing Sm.sub.2 Co.sub.17 alloy suitable for use as permanent magnets
Inventors:
Andrew George Wysiekierski, Robert W. Fraser, Maurice A. Clegg
Patented Case
View Patent ↗
Granted: May 24, 1988
Filed: Nov 12, 1986
Inventors
Andrew George Wysiekierski
Robert W. Fraser
Maurice A. Clegg
Assignee (at issue)
Sherritt Gordon Mines Limited
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.