Granted Patent
Utility
US 6,371,581 · App. 09/543,362
Vending machine with quick release door
Inventors:
Michael Daniel Ring, David A. Yates, Thomas S. Paczkowski
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Apr 5, 2000
Inventors
Michael Daniel Ring
David A. Yates
Thomas S. Paczkowski
Assignee (at issue)
Royla Vendors, 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.