Granted Patent
Utility
US 6,728,167 · App. 09/589,945
Background music controller
Inventor:
Michael S. Robbins
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Jun 7, 2000
Inventor
Michael S. Robbins
Assignee (at issue)
Xantech 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.