Granted Patent
Utility
US 6,452,994 · App. 09/748,333
Systems and methods for storing exothermic materials
Inventor:
Charles W. Pennington
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: Dec 21, 2000
Inventor
Charles W. Pennington
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.