US PATENT SUBCLASS 128 / 206.12
.~.~.~ Face mask covering a breathing passage


Current as of: June, 1999
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128 /   HD   SURGERY

200.24  DF  RESPIRATORY METHOD OR DEVICE {32}
205.27  DF  .~ Means for removing substance from respiratory gas {2}
205.29  DF  .~.~ Particulate filtering {2}
206.12.~.~.~ Face mask covering a breathing passage {7}
206.13  DF  .~.~.~.~> Mask attached to ear
206.14  DF  .~.~.~.~> Mask adhesively attached to face
206.15  DF  .~.~.~.~> With gas flow control valve
206.16  DF  .~.~.~.~> With frame, shaping means, reinforcement, or filter formed of wire
206.17  DF  .~.~.~.~> With separate filter encircling element, or housing, securing filter on mask
206.18  DF  .~.~.~.~> Covering nose only
206.19  DF  .~.~.~.~> Body of mask, other than viewing means, formed of porous filter material (e.g., surgical mask formed entirely of cloth, etc.)


DEFINITION

Classification: 128/206.12

Face mask covering a breathing passage:

(under subclass 205.29) Subject matter including a wall-like structure covering a breathing passage plus a portion of the face.