US PATENT SUBCLASS 148 / 300
.~ Magnetic

Current as of: June, 1999
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148 /   HD   METAL TREATMENT

400  DF  STOCK {20}
300.~ Magnetic {7}
301  DF  .~.~> Rare earth and transition metal containing {2}
304  DF  .~.~> Amorphous {1}
306  DF  .~.~> Iron base (i.e., ferrous) {3}
312  DF  .~.~> Nickel base
313  DF  .~.~> Cobalt base
314  DF  .~.~> Manganese base
315  DF  .~.~> No single metal over 50 percent

DEFINITION

Classification: 148/300

Magnetic:

(under subclass 400) Stock material for magnetic material which is claimed as resulting from a Class 148 treatment, as having an internal structure which resulted from a Class 148 treatment, which is claimed in terms of a specified magnetic property, e.g., coercive force, etc., or for coated magnetic

material wherein the coating is followed by a Class 148 treatment.

SEE OR SEARCH THIS CLASS, SUBCLASS:

100+, for processes of developing, improving, modifying or preserving the magnetic properties of metallic material by a Class 148 process.

SEE OR SEARCH CLASS

252, Compositions,

62.51+, for magnetic compositions which do not contain a continuous phase of metal. The recitation that metallic particles are present in a nonmetallic (e.g., resinous) vehicle, matrix or binder will be taken as meaning that no continuous phase of metal is present.

420, Alloys or Metallic Compositions, appropriate subclasses for alloys or metallic compositions defined only as "magnetic", "magnetized" or "permanent magnet", material even though disclosed as resulting from a Class 148 treatment as well as alloys or metallic compositions claimed, per se, which are inherently magnetic. 427, Coating Processes,

127+, for coating processes, per se, wherein the base or coating are magnetic and wherein there is no separate step of modifying or maintaining the internal physical structure (i.e., microstructure) or chemical properties of the metal.