Granted Patent
Utility
US 4,754,446 · App. 07/006,184
Optical recording system using refracted write beam for erasing
Inventor:
Charles W. Reno
Patented Case
View Patent ↗
Granted: Jun 28, 1988
Filed: Jan 23, 1987
Inventor
Charles W. Reno
Assignee (at issue)
General Electric 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.