Granted Patent
Utility
US 4,902,361 · App. 06/827,911
Bonded rare earth-iron magnets
Inventors:
Robert W. Lee, John J. Croat
Patented Case
View Patent ↗
Granted: Feb 20, 1990
Filed: Feb 10, 1986
Inventors
Robert W. Lee
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.