US PATENT SUBCLASS 454 / 69
VEHICLE (E.G., AUTOMOBILE, ETC.)

Current as of: June, 1999
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454 /   HD   VENTILATION

69VEHICLE (E.G., AUTOMOBILE, ETC.) {15}
70  DF  .~> Pressure regulation {1}
75  DF  .~> Having automatic control means
76  DF  .~> Aircraft {1}
78  DF  .~> Waterborne {3}
83  DF  .~> Railcar, bus, or trailer {10}
118  DF  .~> Freight
119  DF  .~> Having external connection
120  DF  .~> Seat structure
121  DF  .~> Condensation preventer (e.g., defroster, etc.) {6}
128  DF  .~> Means for open window (e.g., deflector, etc.) {5}
136  DF  .~> Roof structure {1}
139  DF  .~> Having forced recirculation {1}
141  DF  .~> Having both inlet and outlet airways {1}
143  DF  .~> Having inlet airway {7}
162  DF  .~> Having outlet airway {3}

DEFINITION

Classification: 454/69

VEHICLE (E.G., AUTOMOBILE, ETC.):

(under the class definition) Subject matter comprising features peculiar to admitting air to, exhausting air from, or circulating air about a (ventilated) space in a device for transporting passengers, goods, or equipment.

(1) Note. Subject matter relating to a mobile home which is essentially stationary is not included in this and indented subclasses. However, subject matter relating to a self-propelled or towed recreational vehicle which is essentially mobile is included in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

2, for a chimney which admits air to or exhausts air from a ventilated space in a vehicle.

68, for elevator ventilation structure.