US PATENT SUBCLASS 249 / 11
.~.~ Culvert, waterway, pipe, or tunnel

Current as of: June, 1999
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249 /   HD   STATIC MOLDS

1  DF  IN SITU CONSTRUCTION ENGINEERING TYPE OR BUILDING TYPE-MOLD OR FORM {4}
10  DF  .~ Forming hydraulic and earth control type product in situ {1}
11.~.~ Culvert, waterway, pipe, or tunnel {1}
12  DF  .~.~.~> Culvert and header wall

DEFINITION

Classification: 249/11

(under subclass 10) Apparatus comprising means for forming a culvert, waterway, pipe or tunnel at the job site.

SEE OR SEARCH THIS CLASS, SUBCLASS:

175+, for a core, per se, for forming the structures, supra.

SEE OR SEARCH CLASS

138, Pipes and Tubular Conduits,

105, for a pipe or tubular conduit including a trench in which the pipe is received.

405, Hydraulic and Earth Engineering, appropriate subclasses for the formed product.