Granted Patent
Utility
US 4,874,833 · App. 07/234,712
Composition containing epoxy resin and alkyl hindered polyaromatic diamine and monoaromatic amine curing agents
Inventor:
Jacqueline A. Kershaw
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Aug 22, 1988
Inventor
Jacqueline A. Kershaw
Assignee (at issue)
SHELL OIL 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.