US PATENT SUBCLASS 250 / 339.07
.~.~.~.~ Including spectrometer or spectrophotometer


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



250 /   HD   RADIANT ENERGY

336.1  DF  INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING {16}
338.1  DF  .~ Infrared responsive {12}
339.01  DF  .~.~ With selection of plural discrete wavelengths or bands {6}
339.06  DF  .~.~.~ With radiation source {5}
339.07.~.~.~.~ Including spectrometer or spectrophotometer {1}
339.08  DF  .~.~.~.~.~> Including Fourier transform infrared spectrometry


DEFINITION

Classification: 250/339.07

Including spectrometer or spectrophotometer:

(under subclass 339.06) Subject matter wherein a spectrometer or a spectrophotometer is used to detect infrared radiation that has interacted with a sample.

(1) Note. A spectrometer is an instrument that determines the frequency distribution of the energy generated by a source and displays all components simultaneously. A spectrophotometer is an instrument that detects and measures the spectral transmittance, reflectance, or emittance of a sample for comparing or determining properties as a function of wavelength.

SEE OR SEARCH CLASS

356, Optics: Measuring and Testing,

319+, for spectrophotometers, and subclasses 326+ for spectrometers.