Granted Patent
Utility
US 5,155,188 · App. 07/464,071
Oxide cocatalysts in ring opening polymerization of polycycloolefins
Inventor:
Brian L. Goodall
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Jan 12, 1990
Inventor
Brian L. Goodall
Assignee (at issue)
B. F. Goodrich 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.