Granted Patent
Utility
US 5,284,907 · App. 08/051,514
Process for the preparation of a masterbatch rubber having polymer bound functionality
Inventors:
Gerald Owen Schulz, Dane K. Parker
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Apr 22, 1993
Inventors
Gerald Owen Schulz
Dane K. Parker
Assignee (at issue)
THE GOODYEAR 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.