Granted Patent
Utility
US 6,355,828 · App. 09/710,996
Nitrile process
Inventors:
Janet Marie Rogers, Robert Clifford Blackstone, Jeffrey Jon Horsager
Patented Case
View Patent ↗
Granted: Mar 12, 2002
Filed: Nov 10, 2000
Inventors
Janet Marie Rogers
Robert Clifford Blackstone
Jeffrey Jon Horsager
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.