Granted Patent
Utility
US 4,902,360 · App. 07/266,226
Permanent magnet alloy for elevated temperature applications
Inventors:
Bao-Min Ma, Kalathur S. Narasimhan
Patented Case
View Patent ↗
Granted: Feb 20, 1990
Filed: Oct 28, 1988
Inventors
Bao-Min Ma
Kalathur S. Narasimhan
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.