Granted Patent
Utility
US 4,636,486 · App. 06/760,539
Polymerization catalysts
Inventors:
Adolfo Mayr, Ermanno Susa, Antonio Leccese, Velmore Davoli, Ettore Giachetti
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: Jul 30, 1985
Inventors
Adolfo Mayr
Ermanno Susa
Antonio Leccese
Velmore Davoli
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.