US PATENT SUBCLASS 493 / 49
.~.~ Including plasticizer, adhesive, coating, or impregnant

Current as of: June, 1999
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493 /   HD   MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB

39  DF  CIGARETTE FILTER MAKING {5}
47  DF  .~ By assembling dissimilar filter materials (e.g., fiber and powdered charcoal, etc.) {2}
49.~.~ Including plasticizer, adhesive, coating, or impregnant

DEFINITION

Classification: 493/49

Including plasticizer, adhesive, coating, or impregnant:

(under subclass 47) Method or apparatus wherein at least one of the different materials comprises (a) material to cause another material to be changed to the plastic state, (b) material to secure two solid components together by adhesive bonding, (c) flowable material to form a layer over another material, or (d) flowable material to be absorbed into another material.

(1) Note. Adsorption is included in this subclass.