Granted Patent
Utility
US 4,459,690 · App. 06/517,936
Multi-beam optical record and playback apparatus having an improved beam splitter
Inventors:
Stephen L. Corsover, George J. Ammon, Charles W. Reno
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: Jul 29, 1983
Inventors
Stephen L. Corsover
George J. Ammon
Charles W. Reno
Assignee (at issue)
RCA Corporation
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.