Granted Patent
Utility
US 6,237,639 · App. 09/267,744
Dump-valve device for a craft and pneumatic craft fitted with same
Inventors:
Daniel Jougla, Pierre Valax
Patented Case
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Granted: May 29, 2001
Filed: Mar 15, 1999
Inventors
Daniel Jougla
Pierre Valax
Assignee (at issue)
ZODIAC INTERNATIONAL
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.