Granted Patent
Utility
US 5,773,378 · App. 08/740,540
Spent catalyst distribution
Inventors:
Benjamin Karl Bussey, Philip E. Glasgow, Steven A. Kalota, Phillip K. Niccum
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Oct 30, 1996
Inventors
Benjamin Karl Bussey
Philip E. Glasgow
Steven A. Kalota
Phillip K. Niccum
Assignee (at issue)
The M.W. Kellogg 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.