Granted Patent
Utility
US 5,037,869 · App. 07/534,873
Process for preparing flame retardant polyamide molding resins containing melamine cyanurate
Inventor:
William E. Sprenkle, Jr.
Patented Case
View Patent ↗
Granted: Aug 6, 1991
Filed: Jun 8, 1990
Inventor
William E. Sprenkle, Jr.
Assignee (at issue)
Monsanto 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.