Granted Patent
Utility
US 4,871,863 · App. 07/150,753
Halogenated bis-imide flame retardants
Inventor:
Mo A. Khuddus
Patented Case
View Patent ↗
Granted: Oct 3, 1989
Filed: Feb 1, 1988
Inventor
Mo A. Khuddus
Assignee (at issue)
Ethyl 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.