Granted Patent
Utility
US 5,750,812 · App. 08/581,238
Method for reducing formation of polychlorinated aromatic compounds during air oxychlorination of C.sub.1 -C.sub.3 Hydrocarbons
Inventors:
Joseph A. Cowfer, Victor J. Johnston, Lawrence Popiel
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Dec 28, 1995
Inventors
Joseph A. Cowfer
Victor J. Johnston
Lawrence Popiel
Assignee (at issue)
The Geon 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.