Granted Patent
Utility
US 5,218,044 · App. 07/505,373
Blends of modified radial polymers and engineering thermoplastic polymers
Inventors:
Richard Gelles, Carl L. Willis, John E. Gorman, Andres M. Arismendi, Jr.
Patented Case
View Patent ↗
Granted: Jun 8, 1993
Filed: Apr 6, 1990
Inventors
Richard Gelles
Carl L. Willis
John E. Gorman
Andres M. Arismendi, Jr.
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.