Granted Patent
Utility
US 4,298,521 · App. 06/024,500
Stabilized polyolefin compositions
Inventors:
John L. H. Allan, Arnold B. Finestone, John J. Roderick
Patented Case
View Patent ↗
Granted: Nov 3, 1981
Filed: Mar 28, 1979
Inventors
John L. H. Allan
Arnold B. Finestone
John J. Roderick
Assignee (at issue)
El Paso Polyolefins 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.