Granted Patent
Utility
US 6,769,559 · App. 10/303,278
Venting plastic closure
Inventors:
John Ziegler, David E. Babcock, Coy M. Herald
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Nov 25, 2002
Inventors
John Ziegler
David E. Babcock
Coy M. Herald
Assignee (at issue)
Alcoa Closure Systems International, 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.