US PATENT SUBCLASS 52 / 736.4
.~.~.~ Partial sleeve (e.g., collar, etc.)

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

720.1  DF  SHAFT (I.E., ELONGATED RIGID STRUCTURE) {15}
736.1  DF  .~ Upright (e.g., post, pole, etc.) {2}
736.3  DF  .~.~ Having shell-like outer layer {1}
736.4.~.~.~ Partial sleeve (e.g., collar, etc.)

DEFINITION

Classification: 52/736.4

Partial sleeve (e.g., collar, etc.):

(under subclass 736.3) Structure including a covering which circumferentially envelopes only a portion of the longitudinal dimension of the shaft.

SEE OR SEARCH THIS CLASS, SUBCLASS:

170, for a shaft with reinforcing means defined as being related to the earth's surface.

721.5, and 723.2, for a concrete or stone-like shaft having a collar.