Granted Patent
Utility
US 4,302,565 · App. 06/012,720
Impregnated polymerization catalyst, process for preparing, and use for ethylene copolymerization
Inventors:
George L. Goeke, Burkhard E. Wagner, Frederick J. Karol
Patented Case
View Patent ↗
Granted: Nov 24, 1981
Filed: Feb 16, 1979
Inventors
George L. Goeke
Burkhard E. Wagner
Frederick J. Karol
Assignee (at issue)
Union Carbide 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.