Granted Patent
Utility
US 4,530,913 · App. 06/112,560
Polymerization catalyst and method
Inventors:
Thomas J. Pullukat, Raymond E. Hoff
Patented Case
View Patent ↗
Granted: Jul 23, 1985
Filed: Jan 16, 1980
Inventors
Thomas J. Pullukat
Raymond E. Hoff
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.