Granted Patent
Utility
US 6,543,252 · App. 09/635,409
Vaporizer-condenser and corresponding air distillation installation
Inventors:
Francois Fuentes, Marc Wagner, Claude Gerard
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Aug 10, 2000
Inventors
Francois Fuentes
Marc Wagner
Claude Gerard
Assignee (at issue)
L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Étude et l'Exploitation des Procédés Georges Claude
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.