Granted Patent
Utility
US 6,586,550 · App. 09/900,954
Polymerization of olefins
Inventors:
Patricia Metzger Cotts, William H. Tuminello, Lin Wang, Joel David Citron
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Jul 9, 2001
Inventors
Patricia Metzger Cotts
William H. Tuminello
Lin Wang
Joel David Citron
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.