US PATENT SUBCLASS 436 / 164
OPTICAL RESULT

Current as of: June, 1999
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436 /   HD   CHEMISTRY: ANALYTICAL AND IMMUNOLOGICAL TESTING

164OPTICAL RESULT {6}
165  DF  .~> With claimed manipulation of container to effect reaction or use of container of claimed optical structure
166  DF  .~> Including reagent preparation
167  DF  .~> Including gas absorption in liquid or solid {1}
169  DF  .~> With reagent in absorbent or bibulous substrate {1}
171  DF  .~> Spectrum analysis (e.g., flame photometry, etc.)
172  DF  .~> With fluorescence or luminescence

DEFINITION

Classification: 436/164

OPTICAL RESULT:

(under the class definition) Subject matter wherein the basis for analysis is an optical result of a chemical reaction that is measured mechanically or visually, e.g., photometer, colorimeter, by human sight, etc.

(1) Note. On disposition of optical examination techniques: See the Search Class notes below for the lines between optical areas.

SEE OR SEARCH CLASS

33, Geometrical Instruments, for mechanical scales and gauges which may be part of optical measuring systems.

73, Measuring and Testing,

23.35+, and 61.52+ for methods and apparatus for examining the band or bands of the chromatography column to determine the quantity, quality, or the substances of the band or bands in a gas or liquid chromatography test.

Class 73 provides for measuring and testing which may include optical measuring and testing, combined with some nonoptical limitation beyond the scope of Class 356, Optics: Measuring and Testing and specifically provided for in Class 73. Specific provision exists in Class 73 when the measurement or test is of the type provided for by the subclasses of Class 73. For example, Class 73, subclasses 23.35+ provides for gas chromatography involving color determination of the Class 356 type together with some manipulation of the gas beyond the scope of Class 356. Again Class 73 subclasses 116+ provides for engine testing involving optical tests of the Class 356 type together with some mechanical manipulation of the parts beyond the scope of Class 356. In general Class 73 provides for measuring and testing of the type indicated by its subclass titles and definitions which may include optical steps together with other mechanical measuring and testing steps beyond the scope of Class 356. There are some patents presently in Class 73 which relate to measuring and testing as there provided, but which claim only optical subject matter within the scope of Class 356. Combinations of optical measuring or testing with other structure or methods is classified in Class 356 if no provision for such combination exists elsewhere.

95, Gas Separation: Processes, 82+, for processes of gas separation using chromatography in which no analysis is made of the colored band or successive bands of the chromatography test.

116, Signals and Indicators,

200+, provides for mechanical indicators which may be part of optical measuring systems.

210, Liquid Purification or Separation, for chromatography columns for generic fluids or liquids when there is no analysis of the electrolyte or displaced liquid.

250, Radiant Energy,

200+, for photocell circuits and apparatus.

313, Electric Lamp and Discharge Devices,

523+, provides for photosensitive discharge devices.

324, Electricity: Measuring and Testing, for electrical indicating and measuring devices which may be part of optical measuring systems.

340, Communications: Electrical, for electrical indicating and measuring devices which may be part of optical measuring systems.

356, Optics: Measuring and Testing, see the search note to Class 73 in this section. 359, Optics: Systems, for optical elements which may be used in measuring and testing apparatus. The conventional optical element such as lenses, prisms and mirrors are there.

436+, relating to scale or indicia reading should be particularly noted.

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,

50+, for analytical apparatus involving chromatography or a colorimeter wherein a reactive reagent is used to develop color.