Granted Patent
Utility
US 6,649,716 · App. 10/024,889
Polymerization of alpha-methylstyrene
Inventors:
Ronald A. Andrekanic, Jeffrey S. Salek, Steven E. Mulhall, Yuriy V. Bubnov
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Dec 18, 2001
Inventors
Ronald A. Andrekanic
Jeffrey S. Salek
Steven E. Mulhall
Yuriy V. Bubnov
Assignee (at issue)
Sunoco, Inc. (R&M)
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.