Granted Patent
Utility
US 4,524,141 · App. 06/487,454
Polymerization catalysts and methods
Inventors:
Thomas J. Pullukat, Yu-Tang Hwang, Robert A. Dombro
Patented Case
View Patent ↗
Granted: Jun 18, 1985
Filed: Apr 21, 1983
Inventors
Thomas J. Pullukat
Yu-Tang Hwang
Robert A. Dombro
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.