Granted Patent
Utility
US 4,623,784 · App. 06/684,352
Laser recording apparatus with off-center lens and error detection
Inventors:
Richard M. Haddock, Terri Lichtenstein
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: Dec 20, 1984
Inventors
Richard M. Haddock
Terri Lichtenstein
Assignee (at issue)
Drexler Technology 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.