US PATENT SUBCLASS 73 / 864.01
.~.~ Pipette or cannula

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.~.~ Pipette or cannula {7}
864.02  DF  .~.~.~> Self-filling of self-limiting
864.03  DF  .~.~.~> With user mouth protection
864.11  DF  .~.~.~> With suction applying and liquid discharge means {5}
864.21  DF  .~.~.~> With sample supply to analyzer
864.22  DF  .~.~.~> With pipette contacting second fluid supply
864.23  DF  .~.~.~> Pipette fixed; source movable
864.24  DF  .~.~.~> Pipette longitudinally movable {1}

DEFINITION

Classification: 73/864.01

Pipette or cannula:

(under subclass 864) Subject matter wherein the capture device is a tube of sufficiently small dimension to retain liquid therein by surface tension.

(1) Note. A pipette of general utility is included here.

(2) Note. A pipette having a point designed to penetrate a sample container or test apparatus is included here.

SEE OR SEARCH CLASS

23, Chemistry: Physical Processes, for a process of using a pipette wherein a step of causing, promoting, regulating or controlling a chemical reaction is claimed.

128, Surgery, for similar subject matter (e.g., hypodermic needles) designed to be used with a living body.

141, Fluent Material Handling, With Receiver or Receiver Coacting Means,

22+, and 29 for a pipette combined with a supply container. 222, Dispensing, for similar subject matter of that class type not involving sampling; particularly

420, for drop formers.

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, for a pipette wherein means to cause, promote, regulate, or control a chemical reaction is claimed.