Granted Patent
Utility
US 6,446,835 · App. 09/891,937
Cold beverage refill system
Inventor:
David F. Ford
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Jun 26, 2001
Inventor
David F. Ford
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.