Granted Patent
Utility
US 4,778,857 · App. 07/054,971
Uncured rubber compositions containing aromatic furazan oxides
Inventors:
Daniel F. Graves, Walter R. Hausch
Patented Case
View Patent ↗
Granted: Oct 18, 1988
Filed: May 28, 1987
Inventors
Daniel F. Graves
Walter R. Hausch
Assignee (at issue)
The Firestone Tire & Rubber 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.