Granted Patent
Utility
US 4,585,473 · App. 06/598,118
Method for making rare-earth element containing permanent magnets
Inventors:
Kalatur S. V. L. Narasimhan, Edward J. Dulis
Patented Case
View Patent ↗
Granted: Apr 29, 1986
Filed: Apr 9, 1984
Inventors
Kalatur S. V. L. Narasimhan
Edward J. Dulis
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.