Granted Patent
Utility
US 6,328,648 · App. 09/157,232
Electronic amusement device and method for propagating a performance adjustment signal
Inventors:
Jay S. Walker, James A. Jorasch, Magdalena Mik, Robert R. Lech
Patented Case
View Patent ↗
Granted: Dec 11, 2001
Filed: Sep 18, 1998
Inventors
Jay S. Walker
James A. Jorasch
Magdalena Mik
Robert R. Lech
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.