Granted Patent
Utility
US 6,162,496 · App. 09/231,691
Method of mixing
Inventor:
David Blue
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Jan 14, 1999
Inventor
David Blue
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.