Granted Patent
Utility
US 5,098,672 · App. 07/362,028
Particulate solids cracking apparatus and process
Inventors:
Robert J. Gartside, Richard C. Norton
Patented Case
View Patent ↗
Granted: Mar 24, 1992
Filed: Jun 6, 1989
Inventors
Robert J. Gartside
Richard C. Norton
Assignee (at issue)
Stone & Webster Engineering Corp.
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.