(under subclass 400) Subject matter in which the process includes a step of testing or measuring any parameter involved in the procedure.
(1) Note. Merely abiding by a specified parameter, e.g., operating at a prescribed temperature range in performing the process, is not considered measuring or testing.
(2) Note. Included in the subclass are those processes wherein a step is controlled in response to the result of a test or measurement.
SEE OR SEARCH CLASS
73, Measuring and Testing, appropriate subclasses, for certain measuring and testing processes, per se, and the notes to the main class definition thereof for the locus of other measuring and testing processes.