Granted Patent
Utility
US 4,303,771 · App. 06/012,712
Process for the preparation of high density ethylene polymers in fluid bed reactor
Inventors:
Burkhard E. Wagner, George L. Goeke, Frederick J. Karol
Patented Case
View Patent ↗
Granted: Dec 1, 1981
Filed: Feb 16, 1979
Inventors
Burkhard E. Wagner
George L. Goeke
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.