Granted Patent
Utility
US 4,641,192 · App. 06/684,200
Focus-corrected convergent beam scanner
Inventors:
Neal Diepeveen, Robert E. Bastian
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: Dec 20, 1984
Inventors
Neal Diepeveen
Robert E. Bastian
Assignee (at issue)
Magnavox Government and Industrial Electronics 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.