Granted Patent
Utility
US 5,632,928 · App. 08/454,767
Azeotrope (like) compositions with octafluorobutane, optionally chlorinated, and either perfluorodimethylcyclobutane or perfluorohexane
Inventor:
Scott Christopher Jackson
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: May 31, 1995
Inventor
Scott Christopher Jackson
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.