Granted Patent
Utility
US 5,945,573 · App. 09/005,400
Process for the manufacture of 1,1,1,3,3-pentafluoropropane
Inventors:
Mario Joseph Nappa, V. N. Mallikarjuna Rao, Allen Capron Sievert
Patented Case
View Patent ↗
Granted: Aug 31, 1999
Filed: Jan 9, 1998
Inventors
Mario Joseph Nappa
V. N. Mallikarjuna Rao
Allen Capron Sievert
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.