Granted Patent
Utility
US 5,717,042 · App. 08/281,319
Process for preparing diene oligomers and copolymeric oligomers
Inventor:
James E. Hall
Patented Case
View Patent ↗
Granted: Feb 10, 1998
Filed: Jul 28, 1994
Inventor
James E. Hall
Assignee (at issue)
Bridgestone Firestone
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.