Granted Patent
Utility
US 5,374,689 · App. 08/053,970
Rubber compositions containing 2-pyrazine sulfenamides
Inventors:
Charles J. Rostek, Jr., Horng-Jau Lin, David J. Sikora
Patented Case
View Patent ↗
Granted: Dec 20, 1994
Filed: May 4, 1993
Inventors
Charles J. Rostek, Jr.
Horng-Jau Lin
David J. Sikora
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.