Granted Patent
Utility
US 4,751,586 · App. 06/903,851
Rotary head tape transport servo system having high speed servo lock capability
Inventor:
David R. Rodal
Patented Case
View Patent ↗
Granted: Jun 14, 1988
Filed: Aug 28, 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.