US PATENT SUBCLASS 144 / 336
.~.~ Tree felling


Current as of: June, 1999
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144 /   HD   WOODWORKING

329  DF  PROCESS {8}
335  DF  .~ Timber harvesting or processing {3}
336.~.~ Tree felling {3}
337  DF  .~.~.~> And chipping
338  DF  .~.~.~> And delimbing and cutting trunk to length
339  DF  .~.~.~> By shearing


DEFINITION

Classification: 144/336

Tree felling:

(under subclass 335) Process including bringing down a tree.

SEE OR SEARCH THIS CLASS, SUBCLASS:

4.1, for apparatus particularly adapted to both cutting and handling timber.

34.1, for tree felling apparatus, generally.

SEE OR SEARCH CLASS

30, Cutlery,

165+, for a cutting tool which may be capable of severing the trunk of a tree from the ground, but without limitation that would limit it to timber harvesting or processing (e.g., without means to push the trunk of a tree as it is severed from the stump). More particularly, search subclasses 90.1+ for means for cutting a tree by a constricting band. Search subclasses 166.3+ of Class 30 for a saw capable of cutting timber; still more specifically, search subclasses 381+ for a chain saw and subclasses 388+ for a rotary saw. 56, Harvesters, for apparatus for cutting down plants other than trees.

83, Cutting,

13+, for a method of cutting, generally, including cutting a tree with a saw; also search Class 83 for apparatus for cutting, generally, with a base mounted machine, especially subclasses 835+ for a saw blade, per se, or the component parts thereof. Note that Class 83 does not include a limitation of the operation to timber harvesting, such as cutting combined with pushing a tree over.