Granted Patent
Utility
US 5,574,082 · App. 08/450,097
Propylene polymer compositions having improved color and stabilizers therefor.
Inventors:
Douglas D. Keller, Morgan L. Gibbs
Patented Case
View Patent ↗
Granted: Nov 12, 1996
Filed: May 25, 1995
Inventors
Douglas D. Keller
Morgan L. Gibbs
Assignee (at issue)
Quantum Chemical Corporation
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.