Granted Patent
Utility
US 4,073,589 · App. 05/657,341
Improved optical printer
Inventor:
Harold A. Scheib
Patented Case
View Patent ↗
Granted: Feb 14, 1978
Filed: Feb 13, 1976
Inventor
Harold A. Scheib
Assignee (at issue)
Bell and Howell, LLC
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.