Granted Patent
Utility
US 4,707,639 · App. 06/900,531
Dynamic focus voltage with phase compensated adjustment
Inventor:
Walter Truskalo
Patented Case
View Patent ↗
Granted: Nov 17, 1987
Filed: Aug 26, 1986
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.