Granted Patent
Utility
US 4,490,514 · App. 06/524,012
High-temperature ethylene polymerization and copolymerization using dialuminoxane cocatalysts
Inventors:
Raymond E. Hoff, Thomas J. Pullukat
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Aug 16, 1983
Inventors
Raymond E. Hoff
Thomas J. Pullukat
Assignee (at issue)
Chemplex, Ltd.
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.