Granted Patent
Utility
US 4,478,705 · App. 06/468,108
Hydroconversion process for hydrocarbon liquids using supercritical vapor extraction of liquid fractions
Inventor:
Partha S. Ganguli
Patented Case
View Patent ↗
Granted: Oct 23, 1984
Filed: Feb 22, 1983
Inventor
Partha S. Ganguli
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.