Granted Patent
Utility
US 4,963,607 · App. 07/366,311
Compositions and methods using organosulfides for stabilization of polyolefins against photodegradation
Inventors:
James L. Reilly, Joseph M. Bohen
Patented Case
View Patent ↗
Granted: Oct 16, 1990
Filed: Jun 13, 1989
Inventors
James L. Reilly
Joseph M. Bohen
Assignee (at issue)
Pennwalt 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.