Granted Patent
Utility
US 4,423,448 · App. 06/270,653
Multi-path to data facility for disk drive transducer arms
Inventor:
Jorgen Frandsen
Patented Case
View Patent ↗
Granted: Dec 27, 1983
Filed: Jun 4, 1981
Inventor
Jorgen Frandsen
Assignee (at issue)
Burroughs, 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.