Granted Patent
Utility
US 6,529,600 · App. 09/104,900
Method and device for preventing piracy of video material from theater screens
Inventors:
Michael Epstein, Douglas A. Stanton
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Jun 25, 1998
Inventors
Michael Epstein
Douglas A. Stanton
Assignee (at issue)
KONINKLIJKE PHILIPS ELECTRONICS NV
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.