Granted Patent
Utility
US 4,767,970 · App. 06/945,734
Dynamic brake control for a tape drive system
Inventor:
David R. Rodal
Patented Case
View Patent ↗
Granted: Aug 30, 1988
Filed: Dec 22, 1986
Inventor
David R. Rodal
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.