Granted Patent
Utility
US 6,252,963 · App. 09/431,990
Method and system for preventing reproduction of documents
Inventor:
Geoffrey B. Rhoads
Patented Case
View Patent ↗
Granted: Jun 26, 2001
Filed: Nov 3, 1999
Inventor
Geoffrey B. Rhoads
Assignee (at issue)
Digimarc Corporation
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.