Granted Patent
Utility
US 5,852,084 · App. 08/685,491
Crystalline form of tetrakis-(2,4-di-t-butylphenyl)-4,4'-biphenylene
Inventors:
Carlo Neri, Marco Bizzarri, Luciano Pallini
Patented Case
View Patent ↗
Granted: Dec 22, 1998
Filed: Jul 24, 1996
Inventors
Carlo Neri
Marco Bizzarri
Luciano Pallini
Assignee (at issue)
Great Lakes Chemical Italia S.r.l.
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.