Granted Patent
Utility
US 6,719,175 · App. 10/096,528
Draft system for beverages
Inventors:
Randall A. Mackenzie, Keith Crawford
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Mar 7, 2002
Inventors
Randall A. Mackenzie
Keith Crawford
Assignee (at issue)
Island Oasis Frozen Cocktail Company, 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.