Granted Patent
Utility
US 5,127,970 · App. 07/703,759
Method for producing rare earth magnet particles of improved coercivity
Inventor:
Andrew S. Kim
Patented Case
View Patent ↗
Granted: Jul 7, 1992
Filed: May 21, 1991
Inventor
Andrew S. Kim
Assignee (at issue)
Crucible Materials 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.