Granted Patent
Utility
US 6,529,680 · App. 08/638,339
Device for selecting and controlling a plurality of signal sources in a television system
Inventor:
David K. Broberg
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Apr 26, 1996
Inventor
David K. Broberg
Assignee (at issue)
Mitsubishi Digital Electronics America, 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.