Granted Patent
Utility
US 6,499,930 · App. 09/954,519
Grain bin unloading system
Inventor:
Carl R. Dixon
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Sep 17, 2001
Inventor
Carl R. Dixon
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.