Granted Patent
Utility
US 4,789,977 · App. 06/927,924
Optical data recording device
Inventors:
Adrianus H. Oudenhuysen, Wai-Hon Lee
Patented Case
View Patent ↗
Granted: Dec 6, 1988
Filed: Nov 6, 1986
Inventors
Adrianus H. Oudenhuysen
Wai-Hon Lee
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.