Granted Patent
Utility
US 4,402,858 · App. 06/368,332
Hydrolytically stable antioxidant composition
Inventors:
Janet D. Capolupo, Elmar H. Jancis
Patented Case
View Patent ↗
Granted: Sep 6, 1983
Filed: Apr 14, 1982
Inventors
Janet D. Capolupo
Elmar H. Jancis
Assignee (at issue)
Uniroyal Ltd.
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.