Granted Patent
Utility
US 6,497,408 · App. 09/528,595
System and method for conducting and playing a supplemental lottery game
Inventors:
Jay S. Walker, Daniel E. Tedesco, James A. Jorasch, John M. Packes, Jr., Magdalena Mik, Stephen C. Tulley
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Mar 20, 2000
Inventors
Jay S. Walker
Daniel E. Tedesco
James A. Jorasch
John M. Packes, Jr.
Magdalena Mik
Stephen C. Tulley
Assignee (at issue)
Walker Digital, LLC
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.