Granted Patent
Utility
US 4,385,944 · App. 06/154,187
Magnetic implements from glassy alloys
Inventor:
Ryusuke Hasegawa
Patented Case
View Patent ↗
Granted: May 31, 1983
Filed: May 29, 1980
Inventor
Ryusuke Hasegawa
Assignee (at issue)
ALLIED CONSULTING, 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.