Granted Patent
Utility
US 4,244,864 · App. 06/062,266
Poly(6-oxy-2,2,4-trialkyl-1,2-dihydroquinoline)alkylene compounds as antidegradants for rubber
Inventors:
Robert H. Campbell, Raleigh W. Wise, William A. Vaughn
Patented Case
View Patent ↗
Granted: Jan 13, 1981
Filed: Jul 30, 1979
Inventors
Robert H. Campbell
Raleigh W. Wise
William A. Vaughn
Assignee (at issue)
Monsanto Company
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.