Granted Patent
Utility
US 6,806,396 · App. 10/320,143
Disposal of fluoroform (HFC-23)
Inventors:
Peter Gideon Gelblum, Velliyur Nott Mallikarjuna Rao, Charles Joseph Noelke, Norman Herron
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Dec 16, 2002
Inventors
Peter Gideon Gelblum
Velliyur Nott Mallikarjuna Rao
Charles Joseph Noelke
Norman Herron
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.