Granted Patent
Utility
US 6,761,213 · App. 10/368,458
Reboiler/condenser heat exchanger of the bath type
Inventor:
Benoit Davidian
Patented Case
View Patent ↗
Granted: Jul 13, 2004
Filed: Feb 20, 2003
Inventor
Benoit Davidian
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.