Granted Patent
Utility
US 5,439,992 · App. 08/254,381
Continuous process for making melt-processable optical grade ring-opened polycyclic (co)polymers in a single-stage multi-zoned reactor
Inventors:
Kong Yi, Linwood P. Tenney, Parley C. Lane, Jr., John Victor Wessel, Nancy S. Marchant
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Jun 6, 1994
Inventors
Kong Yi
Linwood P. Tenney
Parley C. Lane, Jr.
John Victor Wessel
Nancy S. Marchant
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.