Granted Patent
Utility
US 5,073,598 · App. 07/369,170
Method for improving the processing characteristics of polyethylene blends
Inventor:
David J. Anzini
Patented Case
View Patent ↗
Granted: Dec 17, 1991
Filed: Jun 21, 1989
Inventor
David J. Anzini
Assignee (at issue)
Mobil Oil Corporation
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.