Granted Patent
Utility
US 4,489,020 · App. 06/450,851
Method of forming crosslinked styrenic polymer articles and the articles
Inventor:
Daniel J. DiBiasi
Patented Case
View Patent ↗
Granted: Dec 18, 1984
Filed: Dec 20, 1982
Inventor
Daniel J. DiBiasi
Assignee (at issue)
Mobil Oil 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.