Granted Patent
Utility
US 5,174,362 · App. 06/765,136
High-energy product rare earth-iron magnet alloys
Inventor:
John J. Croat
Patented Case
View Patent ↗
Granted: Dec 29, 1992
Filed: Aug 13, 1985
Inventor
John J. Croat
Assignee (at issue)
General Motors LLC
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.