Granted Patent
Utility
US 4,298,705 · App. 06/214,893
Rubber-modified fire-retardant imide copolymers
Inventor:
Adolph V. DiGiulio
Patented Case
View Patent ↗
Granted: Nov 3, 1981
Filed: Dec 8, 1980
Inventor
Adolph V. DiGiulio
Assignee (at issue)
Arco Polymers, 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.