Granted Patent
Utility
US 6,220,147 · App. 09/460,231
Beverage preparation and layering device for an espresso machine
Inventor:
Anthony P. Priley
Patented Case
View Patent ↗
Granted: Apr 24, 2001
Filed: Dec 13, 1999
Inventor
Anthony P. Priley
Assignee (at issue)
Affinitea Brewing Technologies, Inc.
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.