Granted Patent
Utility
US 4,908,699 · App. 07/299,290
Component video accumulation effect
Inventors:
Daniel J. Chaplin, Paul M. Trethewey, Christopher R. Hansen, R. Barry Angell
Patented Case
View Patent ↗
Granted: Mar 13, 1990
Filed: Jan 23, 1989
Inventors
Daniel J. Chaplin
Paul M. Trethewey
Christopher R. Hansen
R. Barry Angell
Assignee (at issue)
GRASS VALLEY LIMITED
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.