US PATENT SUBCLASS 73 / 864.03
.~.~.~ With user mouth protection

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

863  DF  SAMPLER, SAMPLE HANDLING, ETC. {11}
864  DF  .~ Capture device {9}
864.01  DF  .~.~ Pipette or cannula {7}
864.03.~.~.~ With user mouth protection

DEFINITION

Classification: 73/864.03

With user mouth protection:

(under subclass 864.01) Subject matter wherein the tube includes a mouthpiece comprising means to prevent movement of liquid to the mouthpiece when an operator applies suction to the tube.

(1) Note. The disclosure of such a function will be sufficient for placement here.