Granted Patent
Utility
US 6,193,402 · App. 09/165,649
Multiple tub mobile blender
Inventors:
Kristian E. Grimland, Timothy Lloyd Anderson
Patented Case
View Patent ↗
Granted: Feb 27, 2001
Filed: Oct 2, 1998
Inventors
Kristian E. Grimland
Timothy Lloyd Anderson
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.