Granted Patent
Utility
US 4,523,302 · App. 06/283,973
Core memory with return drive scheme
Inventor:
Thomas J. Gilligan
Patented Case
View Patent ↗
Granted: Jun 11, 1985
Filed: Jul 16, 1981
Inventor
Thomas J. Gilligan
Assignee (at issue)
Ampex Corporation
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.