Granted Patent
Utility
US 4,399,422 · App. 06/297,672
Magnetizing apparatus
Inventors:
Alfred M. Nelson, Houshang Rasekhi, John J. Sudano
Patented Case
View Patent ↗
Granted: Aug 16, 1983
Filed: Aug 31, 1981
Inventors
Alfred M. Nelson
Houshang Rasekhi
John J. Sudano
Assignee (at issue)
Wang Laboratories, Inc.
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.