Granted Patent
Utility
US 6,421,089 · App. 09/303,370
Frame format conversion process
Inventors:
Edouard Francois, Philippe Guillotel, Jean-Francois Vial
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Apr 30, 1999
Inventors
Edouard Francois
Philippe Guillotel
Jean-Francois Vial
Assignee (at issue)
Thomson Licensing
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.