Granted Patent
Utility
US 6,084,121 · App. 09/392,804
Nitrile process
Inventors:
Janet Marie Rogers, William Randolph Leyendecker, Robert Clifford Blackstone
Patented Case
View Patent ↗
Granted: Jul 4, 2000
Filed: Sep 9, 1999
Inventors
Janet Marie Rogers
William Randolph Leyendecker
Robert Clifford Blackstone
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.