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Class 440 :: MARINE PROPULSION

Definition

This class includes and is limited to devices that relate to and have for their object means other than sails for moving a vessel through the water. Included are all types of propellers acting or reacting upon the water or atmosphere and all inventions for moving tows not otherwise classified.

To be proper for this class there must be significantly claimed vessel structure or a claimed modification to the vessel structure to accommodate the propulsion device. If no more vessel structure is claimed than is necessary to mount the propulsion device, the device should be classified in the proper motive power class. This class, however, takes outboard motor types of propulsion devices regardless of claimed structure.

(1) Note. The term “vessel” in the definition may include a person or animal. Mere aquatic devices secured to or held by a person or animal to increase the effective contact between the user and the liquid and thereby cause faster or farther propulsion through the liquid by the user's swimming strokes are not included. For such devices, see References to Other Classes, below.

LINES WITH OTHER CLASSESInventions pertaining to the structure or details of boats and skimming or walking devices (e.g., toboggans, water skis, etc.), are classified elsewhere. See References to Other Classes, below.

Subclasses List