US PATENT SUBCLASS 44 / 354
.~ Aluminum or heavy metal, other than lead, containing

Current as of: June, 1999
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44 /   HD   FUEL AND RELATED COMPOSITIONS

300  DF  LIQUID FUELS (EXCLUDING FUELS THAT ARE EXCLUSIVELY MIXTURES OF LIQUID HYDROCARBONS) {31}
354.~ Aluminum or heavy metal, other than lead, containing {3}
355  DF  .~.~> Inorganic metal carbonyl compound (e.g., iron carbonyl, etc.) {1}
357  DF  .~.~> Inorganic compound of Zr, Cr, Cu, Zn, or Ni
358  DF  .~.~> Organic compound containing the heavy metal or aluminum {8}

DEFINITION

Classification: 44/354

Aluminum or heavy metal, other than lead, containing:

(under subclass 300) Compositions which contain an aluminum compound or a heavy metal, other than lead, compound.

(1) Note. Arsenic is considered a heavy metal.

(2) Note. Heavy metals are considered to be those having a specific gravity greater than 4.0.

(3) Note. Lead compounds, except those containing lead and aluminum or an additional heavy metal, are excluded from this subclass and its indents, and placed in appropriate subclasses below.

(4) Note. Examples of ingredients provided for by this subclass are aluminum hydroxide, vanadium trichloride, silver iodide, and ferrous oxide.

SEE OR SEARCH THIS CLASS, SUBCLASS:

385, for lead acetate.

370+, for lead sulfonates, and other appropriate subclasses, for compounds containing both lead and an additional functional group. 454+, for tetrahydrocarbyl lead compounds.