We have documented the achievements of Pittsburgh, PA's, old Gulf Oil Corporation, and their Pittsburg (KS) and Midway, "P&M", Mining subsidiary, in furthering the advancement of Coal liquefaction technology.
Herein, we present an early example of their CoalTL work, which we don't believe we have previously reported. Given it's vintage, we'll suppose it related to the rather extensive post-WWII efforts undertaken by our Government, and it's Oil Industry "partners", to transfer the Axis powers' success in converting Coal into liquid hydrocarbon fuels to the United States.
CoalTL technology has advanced in the more than half a century since this US Patent was issued, and there are, there very probably were, even then, better, and easier, ways to go about transforming Coal into liquid hydrocarbon fuels.