US PATENT SUBCLASS 49 / 400
.~ Closure nests within portal frame

Current as of: June, 1999
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49 /   HD   MOVABLE OR REMOVABLE CLOSURES

381  DF  WITH MEANS MOUNTING CLOSURE FOR SWINGING {13}
400.~ Closure nests within portal frame {1}
401  DF  .~.~> Marginal closure flange overlaps portal frame

DEFINITION

Classification: 49/400

(under subclass 381) Device wherein the closure or a portion thereof, in its closed position, fits within or projects into the closure opening formed by surrounding frame members.

SEE OR SEARCH THIS CLASS, SUBCLASS:

161+, for a sliding closure with a swinging enclosed section nested within its marginal frame.