Granted Patent
Utility
US 4,135,889 · App. 05/752,348
Single stage, coal gasification reactor
Inventor:
Shuji Mori
Patented Case
View Patent ↗
Granted: Jan 23, 1979
Filed: Dec 20, 1976
Inventor
Shuji Mori
Assignee (at issue)
THE UNIVERSITY OF UTAH
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.