Granted Patent
Utility
US 4,736,356 · App. 06/885,217
Optical disk drive
Inventor:
Michael V. Konshak
Patented Case
View Patent ↗
Granted: Apr 5, 1988
Filed: Jul 14, 1986
Inventor
Michael V. Konshak
Assignee (at issue)
OptoTech AG
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.