US PATENT SUBCLASS 132 / 250
.~.~.~.~.~ Cylindrical or hollow form or mandrel

Current as of: June, 1999
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132 /   HD   TOILET

212  DF  HAIR DEVICE {12}
223  DF  .~ Having hair shaping surface or form (e.g., crimper or curler) {3}
226  DF  .~.~ Having winding form or mandrel (e.g., curler) {10}
245  DF  .~.~.~ Hair retained {8}
248  DF  .~.~.~.~ Including string or elastic band fastener {2}
250.~.~.~.~.~ Cylindrical or hollow form or mandrel

DEFINITION

Classification: 132/250

Cylindrical or hollow form or mandrel:

(under subclass 248) Device wherein the structure about which the hair is woven or wound either (a) defines a cavity extending along substantially the entire length of the structure's central longitudinal axis or (b) has a substantially constant circular cross section along the entire length of a central longitudinal axis.

(1) Note. Forms or mandrels comprised of a flat sheet of material (e.g., foam) which is rolled into a cylindrical shape during use are excluded from this subclass.