Granted Patent
Utility
US 5,026,438 · App. 07/417,540
Method of making self-aligning anisotropic powder for magnets
Inventors:
Kevin A. Young, Dennis L. Plackard
Patented Case
View Patent ↗
Granted: Jun 25, 1991
Filed: Oct 5, 1989
Inventors
Kevin A. Young
Dennis L. Plackard
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.