Granted Patent
Utility
US 5,783,513 · App. 08/816,611
Process for making double metal cyanide catalysts
Inventors:
George Combs, Harry R. Hinney, Paul T. Bowman
Patented Case
View Patent ↗
Granted: Jul 21, 1998
Filed: Mar 13, 1997
Inventors
George Combs
Harry R. Hinney
Paul T. Bowman
Assignee (at issue)
Arco Chemical Technology, L.P.
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.