Granted Patent
Utility
US 5,971,002 · App. 08/838,687
Safety valve for a circuit for ventilating a liquid tank
Inventors:
Jacques Turpin, Serge Percebois
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Apr 9, 1997
Inventors
Jacques Turpin
Serge Percebois
Assignee (at issue)
SOLVAY (Société Anonyme)
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.