Granted Patent
Utility
US 5,313,304 · App. 08/080,162
Chroma keyer with fringe control offset
Inventor:
Daniel J. Chaplin
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: Jun 21, 1993
Inventor
Daniel J. Chaplin
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.