Granted Patent
Utility
US 4,451,575 · App. 06/440,684
Activators for Ziegler type polymerization catalysts using bis(trichloromethyl) sulfone
Inventors:
Walter Nudenberg, Yong S. Rim, Demetreos N. Matthews
Patented Case
View Patent ↗
Granted: May 29, 1984
Filed: Nov 10, 1982
Inventors
Walter Nudenberg
Yong S. Rim
Demetreos N. Matthews
Assignee (at issue)
Uniroyal 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.