Granted Patent
Utility
US 4,587,465 · App. 06/676,816
Dynamic focus circuit
Inventor:
Walter Truskalo
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Nov 30, 1984
Inventor
Walter Truskalo
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.