Granted Patent
Utility
US 4,243,821 · App. 06/075,356
Process for the preparation of symmetrical dicumyl peroxides
Inventors:
Ronald E. MacLeay, Robert T. Kazmierczak
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Sep 13, 1979
Inventors
Ronald E. MacLeay
Robert T. Kazmierczak
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.