Granted Patent
Utility
US 4,959,823 · App. 07/410,357
Tracking and seeking system for use with an optical record carrier having a wobbled track format
Inventors:
Kurt Getreuer, Johannes J. Verboom
Patented Case
View Patent ↗
Granted: Sep 25, 1990
Filed: Sep 21, 1989
Inventors
Kurt Getreuer
Johannes J. Verboom
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.