Granted Patent
Utility
US 6,448,974 · App. 09/259,372
Method and apparatus for chroma key data modifying insertion without video image fragmentation
Inventors:
Antonio Asaro, Edward G. Callway
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Feb 26, 1999
Inventors
Antonio Asaro
Edward G. Callway
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.