Granted Patent
Utility
US 4,607,296 · App. 06/756,411
Clock recovery system in digital rotary scan magnetic playback devices
Inventor:
Peter Smidth
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: Jul 17, 1985
Inventor
Peter Smidth
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.