Granted Patent
Utility
US 6,443,094 · App. 09/698,433
Method and apparatus for cleaning the udder of a cow
Inventor:
Dave DeWaard
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Oct 25, 2000
Inventor
Dave DeWaard
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.