Granted Patent
Utility
US 4,434,049 · App. 06/359,156
Residual oil feed process for fluid catalyst cracking
Inventors:
Robert R. Dean, Jean-Louis Mauleon, Robert J. Newman
Patented Case
View Patent ↗
Granted: Feb 28, 1984
Filed: Mar 17, 1982
Inventors
Robert R. Dean
Jean-Louis Mauleon
Robert J. Newman
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.