Granted Patent
Utility
US 4,298,718 · App. 05/622,550
Catalysts for the polymerization of olefins
Inventors:
Adolfo Mayr, Paolo Galli, Ermanno Susa, Giovanni Di Drusco, Ettore Giachetti
Patented Case
View Patent ↗
Granted: Nov 3, 1981
Filed: Oct 14, 1975
Inventors
Adolfo Mayr
Paolo Galli
Ermanno Susa
Giovanni Di Drusco
Ettore Giachetti
Assignee (at issue)
Montecatini Edison S.p.A.
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.