Granted Patent
Utility
US 4,495,055 · App. 06/574,223
Coal catalytic hydrogenation process using direct coal slurry feed to reactor with controlled mixing conditions
Inventors:
Alfred G. Comolli, Edwin J. Hippo
Patented Case
View Patent ↗
Granted: Jan 22, 1985
Filed: Jan 26, 1984
Inventors
Alfred G. Comolli
Edwin J. Hippo
Assignee (at issue)
HRI
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.