US PATENT SUBCLASS 554 / 16
.~.~.~.~.~ Vacuum or pressure utilized (e.g., normally gaseous hydrocarbon solvent kept liquid under pressure, etc.)


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



554 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ Fatty compounds having an acid moiety which contains the carbonyl of a carboxylic acid, salt, ester, or amide group bonded directly to one end of an acyclic chain of at least seven (7) uninterrupted carbons, wherein any additional carbonyl in the acid moiety is (1) part of an aldehyde or ketone group, (2) bonded directly to a noncarbon atom which is between the additional carbonyl and the chain, or (3) attached indirectly to the chain via ionic bonding {23}
8  DF  .~.~ Extraction directly from animal or plant source material (e.g., recovery from garbage, fish offal, slaughter house waste, whole fish, olive fruit, etc.) {6}
9  DF  .~.~.~ Legume, nut, or seed source material (e.g., peanut, soya bean, rice bran, etc.) {4}
12  DF  .~.~.~.~ Organic solvent extraction {3}
16.~.~.~.~.~ Vacuum or pressure utilized (e.g., normally gaseous hydrocarbon solvent kept liquid under pressure, etc.)


DEFINITION

Classification: 554/16

(under subclass 12) Processes wherein the extraction is carried out under a pressure greater or less than atmospheric.

(1) Note. The pressure referred to in this subclass is fluid pressure and not mechanical.