Granted Patent
Utility
US 4,635,124 · App. 06/802,228
Auxiliary focusing circuit for automatic focusing camera
Inventors:
Evo Andreatti, Jr., Frank S. Krufka
Patented Case
View Patent ↗
Granted: Jan 6, 1987
Filed: Nov 26, 1985
Inventors
Evo Andreatti, Jr.
Frank S. Krufka
Assignee (at issue)
RCA 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.