Granted Patent
Utility
US 4,774,563 · App. 07/045,912
Color video switching circuit
Inventors:
Amir M. Sheikholeslami, Glenn T. Turro
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: May 1, 1987
Inventors
Amir M. Sheikholeslami
Glenn T. Turro
Assignee (at issue)
Zenith Electronics 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.