Granted Patent
Utility
US 4,417,330 · App. 06/311,630
Optical memory system providing improved focusing control
Inventors:
Robert L. Hazel, Edward V. LaBudde
Patented Case
View Patent ↗
Granted: Nov 22, 1983
Filed: Oct 15, 1981
Inventors
Robert L. Hazel
Edward V. LaBudde
Assignee (at issue)
Burroughs, Inc.
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.