Granted Patent
Utility
US 4,384,066 · App. 06/292,542
Ionic elastomer blends with syndiotactic polybutadiene
Inventor:
Francis X. O'Shea
Patented Case
View Patent ↗
Granted: May 17, 1983
Filed: Aug 13, 1981
Inventor
Francis X. O'Shea
Assignee (at issue)
Uniroyal Ltd.
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.