Granted Patent
Utility
US 4,415,244 · App. 06/360,258
Automatic focusing system
Inventors:
William T. Daly, Boris Gelman, William R. Sanderson
Patented Case
View Patent ↗
Granted: Nov 15, 1983
Filed: Mar 22, 1982
Inventors
William T. Daly
Boris Gelman
William R. Sanderson
Assignee (at issue)
Telex Communications, 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.