Granted Patent
Utility
US 6,573,838 · App. 09/904,916
Differential range remote control
Inventor:
Scott Christie
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Jul 13, 2001
Inventor
Scott Christie
Assignee (at issue)
Audiovox 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.