Granted Patent
Utility
US 6,578,758 · App. 09/994,176
Air breathable bulk materials container
Inventors:
John M. Grigsby, Jr., Jeffrey C. Banks
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Nov 26, 2001
Inventors
John M. Grigsby, Jr.
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.