Granted Patent
Utility
US 4,968,407 · App. 07/185,617
Sludge dewatering and destruction within a delayed coking process
Inventors:
Michael J. McGrath, Rino L. Godino
Patented Case
View Patent ↗
Granted: Nov 6, 1990
Filed: Apr 25, 1988
Inventors
Michael J. McGrath
Rino L. Godino
Assignee (at issue)
Foster Wheeler USA Corporation
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.