Granted Patent
Utility
US 5,221,795 · App. 07/923,326
Process for producing olefin oxides
Inventors:
Marjo G. Clerici, Patrizia Ingallina
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Jul 31, 1992
Inventors
Marjo G. Clerici
Patrizia Ingallina
Assignee (at issue)
Eniricerche 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.