US PATENT SUBCLASS 73 / 23.3
.~ Breath analysis
Current as of: June, 1999
Click HD for Main Headings
Click for All Classes
DEFINITION
Classification: 73/23.3
Breath analysis:
(under subclass 23.2) Subject matter wherein the gas being tested is exhaled by a human being or other animal.
SEE OR SEARCH CLASS
128, Surgery,
717+, for breath analyzing inside the body.
340, Communications: Electrical,
632+, for a humanly perceptible indication of a predetermined condition of the breath.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,
84+, for a breath analyzer utilizing a chemical change to analyze air exhaled from a human being or other animal. 436, Chemistry: Analytical and Immunological Testing, appropriate subclasses for a process of gas analysis which utilizes a chemical reaction, particularly
132, for ethanol determination, and subclass 900 for a cross-reference art collection of breath testing processes.
