Granted Patent
Utility
US 4,740,949 · App. 07/039,600
Laser access apparatus for optical disk drive
Inventor:
Marvin B. Davis
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Apr 16, 1987
Inventor
Marvin B. Davis
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.