Granted Patent
Utility
US 5,278,238 · App. 07/448,493
Polycycloolefin polymer alloys utilizing dispersed ethylene-based functional polymers
Inventors:
Biing-Lin Lee, Robert J. Minchak
Patented Case
View Patent ↗
Granted: Jan 11, 1994
Filed: Dec 11, 1989
Inventors
Biing-Lin Lee
Robert J. Minchak
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.