Granted Patent
Utility
US 6,784,443 · App. 09/746,156
Storage vessels and related closure methods
Inventors:
Charles W. Pennington, George C. Carver
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Dec 22, 2000
Inventors
Charles W. Pennington
George C. Carver
Assignee (at issue)
NAC 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.