Granted Patent
Utility
US 4,694,259 · App. 06/912,879
Data tracking clock recovery system having media speed variation compensation
Inventors:
Richard C. Carickhoff, Hakan O. Hemdal, Alvin Schultz
Patented Case
View Patent ↗
Granted: Sep 15, 1987
Filed: Sep 29, 1986
Inventors
Richard C. Carickhoff
Hakan O. Hemdal
Alvin Schultz
Assignee (at issue)
Laser Magnetic Storage International Company
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.