Granted Patent
Utility
US 5,545,774 · App. 08/352,004
Process for the manufacture of 1,1,1,3,3,3-hexafluoropropane
Inventor:
V. N. Mallikarjuna Rao
Patented Case
View Patent ↗
Granted: Aug 13, 1996
Filed: Dec 8, 1994
Inventor
V. N. Mallikarjuna Rao
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.