Granted Patent
Utility
US 5,235,019 · App. 07/815,241
Process for preparation of poly(aryl ether) polymers by macro monocyclic catalysts
Inventor:
Selvaraj Savariar
Patented Case
View Patent ↗
Granted: Aug 10, 1993
Filed: Dec 31, 1991
Inventor
Selvaraj Savariar
Assignee (at issue)
Amoco 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.