Granted Patent
Utility
US 5,420,183 · App. 08/088,513
Flame retardant polypropylene composition
Inventors:
Arthur A. Arena, Parvin Sawhney
Patented Case
View Patent ↗
Granted: May 30, 1995
Filed: Jul 6, 1993
Inventors
Arthur A. Arena
Parvin Sawhney
Assignee (at issue)
HPG International, Inc.
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.