Granted Patent
Utility
US 4,886,900 · App. 07/074,561
Tetrakis(3-(3,5-di-tert.buyl-4-hydroxyphenyl)propionyl-oxymethyl) methane with amorphous structure, process for its preparation and its use as a stabilizer
Inventors:
Carlo Neri, Nereo Nodari, Giovanni Sandre
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Jul 17, 1987
Inventors
Carlo Neri
Nereo Nodari
Giovanni Sandre
Assignee (at issue)
Enichem Sintesi 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.