Granted Patent
Utility
US 4,769,800 · App. 06/899,893
Positioning device for a sensing head of an optical data storage system
Inventors:
Erich Moser, Norbert Gottfried
Patented Case
View Patent ↗
Granted: Sep 6, 1988
Filed: Aug 25, 1986
Inventors
Erich Moser
Norbert Gottfried
Assignee (at issue)
Siemens Aktiengesellschaft
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.