Granted Patent
Utility
US 6,202,871 · App. 09/384,825
Vented beverage closure
Inventor:
Ronald L. Kelly
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Aug 27, 1999
Inventor
Ronald L. Kelly
Assignee (at issue)
Crown Cork & Seal Technologies Corporation
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.