Granted Patent
Utility
US 6,808,106 · App. 10/225,556
Restricted port air breathable bulk materials container
Inventors:
Charles F. Grigsby, Jeffrey C. Banks
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Aug 21, 2002
Inventors
Charles F. Grigsby
Jeffrey C. Banks
Assignee (at issue)
North American Container 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.