Granted Patent
Utility
US 5,750,787 · App. 08/655,511
Liquid alkylated diphenylamine antioxidant
Inventors:
John T. Lai, Deborah S. Filla
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: May 30, 1996
Inventors
John T. Lai
Deborah S. Filla
Assignee (at issue)
B. F. Goodrich 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.