Granted Patent
Utility
US 5,552,185 · App. 08/311,243
Plastic article having flame retardant properties
Inventor:
François De Keyser
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: Sep 23, 1994
Inventor
François De Keyser
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.