Granted Patent
Utility
US 6,834,686 · App. 10/238,057
Tank pressure management system
Inventors:
John M. Gray, John P. Nesbit
Patented Case
View Patent ↗
Granted: Dec 28, 2004
Filed: Sep 9, 2002
Inventors
John M. Gray
John P. Nesbit
Assignee (at issue)
Delaware Capital Formation, 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.