Granted Patent
Utility
US 4,831,096 · App. 07/144,786
Process of bulk polymerization of styrene using azoalkane mixtures containing unsymmetrical azoalkanes
Inventor:
Ronald E. MacLeay
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Jan 21, 1988
Inventor
Ronald E. MacLeay
Assignee (at issue)
Pennwalt 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.