Granted Patent
Utility
US 6,458,979 · App. 09/556,204
Polymerization of ethylene
Inventor:
Lynda Kaye Johnson
Patented Case
View Patent ↗
Granted: Oct 1, 2002
Filed: Apr 24, 2000
Inventor
Lynda Kaye Johnson
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.