Granted Patent
Utility
US 4,879,707 · App. 07/148,028
Optical disk tracking and seeking systems specific track formats using discontinuities
Inventors:
Kurt W. Getreuer, Johannes J. Verboom, Pierre Robert Valère Sonneville
Patented Case
View Patent ↗
Granted: Nov 7, 1989
Filed: Jan 25, 1988
Inventors
Kurt W. Getreuer
Johannes J. Verboom
Pierre Robert Valère Sonneville
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.