Granted Patent
Utility
US 5,525,690 · App. 08/286,444
Process for the preparation of a polyolefin and syndiotactic polypropylene
Inventors:
James C. W. Chien, Marvin D. Rausch
Patented Case
View Patent ↗
Granted: Jun 11, 1996
Filed: Aug 5, 1994
Inventors
James C. W. Chien
Marvin D. Rausch
Assignee (at issue)
SOLVAY (Société Anonyme)
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.