Granted Patent
Utility
US 5,280,059 · App. 08/049,690
Color prevention in titanium catalyzed hydrogenated diene polymers
Inventors:
Linda R. Chamberlain, Carma J. Gibler, Miguel Prado
Patented Case
View Patent ↗
Granted: Jan 18, 1994
Filed: Apr 16, 1993
Inventors
Linda R. Chamberlain
Carma J. Gibler
Miguel Prado
Assignee (at issue)
SHELL OIL COMPANY
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.