US PATENT SUBCLASS 454 / 143
.~ Having inlet airway

Current as of: June, 1999
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454 /   HD   VENTILATION

69  DF  VEHICLE (E.G., AUTOMOBILE, ETC.) {15}
143.~ Having inlet airway {7}
144  DF  .~.~> Including duct extending along floor
145  DF  .~.~> Selective inlet, outlet, and closure
146  DF  .~.~> Including exterior cowl inlet {3}
150  DF  .~.~> Including exterior windshield inlet
151  DF  .~.~> Including exterior rear or rear-side inlet
152  DF  .~.~> Including specific air distributor {3}
156  DF  .~.~> With air treatment means {3}

DEFINITION

Classification: 454/143

Having inlet airway:

(under subclass 69) Subject matter comprising means for admitting air to the ventilated space.

(1) Note. Subject matter disclosing an airway which can function either as an inlet or an outlet is classified in this and indented subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:

10+, for chimneys or stacks having an inlet airway.

107, for railcars, buses, or trailers having inlet airways.

254+, for static structures (e.g., buildings) having inlet airways.