Granted Patent
Utility
US 5,746,397 · App. 08/664,343
Aircraft defueling system
Inventors:
Topper DeField, Brent DeField
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Jun 14, 1996
Inventors
Topper DeField
Brent DeField
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.