US PATENT SUBCLASS 585 / 801 .~ By conversion of solid to gas, e.g., sublimation, etc., or by melting or squeezing out liquid from solid natural source
Current as of: June, 1999
Click HD for Main Headings
Click for All Classes
.~ By conversion of solid to gas, e.g., sublimation, etc., or by melting or squeezing out liquid from solid natural source
DEFINITION
Classification: 585/801
By conversion of solid to gas, e.g., sublimation, etc., or by melting or squeezing out liquid from solid natural source:
(under subclass 800) Subject matter wherein hydrocarbon contained in a solid material (including a fluent solid) is converted to a gas without existing in the liquid state for any significant amount of time, or wherein the hydrocarbon is recovered as a liquid by application of heat or pressure to a solid source of the hydrocarbon found in nature, e.g., recovery of turpentine from wood, etc.
SEE OR SEARCH CLASS
201, Distillation: Processes, Thermolytic, for a process wherein a hydrocarbon material is removed from a solid source as a gas and subsequently condensed, some of the original material being converted to char.
