Granted Patent
Utility
US 6,709,802 · App. 09/996,058
Methods and apparatus for rendering an optically encoded medium unreadable
Inventors:
Nabil Lawandy, Charles M. Zepp, Kenneth S. Norland
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Nov 28, 2001
Inventors
Nabil Lawandy
Charles M. Zepp
Kenneth S. Norland
Assignee (at issue)
Flexplay Technologies, Inc.
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.