US PATENT SUBCLASS 128 / 201.23
.~.~ And nose and mouth also covered

Current as of: June, 1999
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128 /   HD   SURGERY

200.24  DF  RESPIRATORY METHOD OR DEVICE {32}
201.22  DF  .~ Including body or head supported means covering user's scalp {1}
201.23.~.~ And nose and mouth also covered {6}
201.24  DF  .~.~.~> Face mask, visor, or like face-covering means hinged to scalp covering means
201.25  DF  .~.~.~> Means for removing substance from respiratory gas
201.26  DF  .~.~.~> Including means inserted in mouth
201.27  DF  .~.~.~> Diving or swimming apparatus
201.28  DF  .~.~.~> Having valve, or valve control, structure
201.29  DF  .~.~.~> Garment associated with head cover {1}

DEFINITION

Classification: 128/201.23

And nose and mouth also covered:

(under subclass 201.22) Subject matter wherein a portion of the scalp covering means, or a face mask associated therewith, overlies the nose and mouth.

(1) Note. See subclass 205.25 for the definition of a face mask.