Granted Patent
Utility
US 6,678,465 · App. 09/336,491
Method and apparatus for restricting a video output of a computing system based on copy protection information
Inventor:
Philip L. Swan
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Jun 18, 1999
Inventor
Philip L. Swan
Assignee (at issue)
ATI International SRL
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.