US PATENT SUBCLASS 359 / 507
PROTECTION FROM MOISTURE OR FOREIGN PARTICLE

Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

507PROTECTION FROM MOISTURE OR FOREIGN PARTICLE {6}
508  DF  .~> Optical element rotates
509  DF  .~> Fluid directed across optical element
510  DF  .~> Microscope drape
511  DF  .~> Cap or cover
512  DF  .~> Humidity or temperature control
513  DF  .~> Sealing {1}

DEFINITION

Classification: 359/507

PROTECTION FROM MOISTURE OR FOREIGN PARTICLE:

(under the class definition) Subject matter including structure to stop moisture or foreign matter from coming into contact with optical elements or means to remove moisture or foreign matter from optical elements.

(1) Note. Storage or container, per se, for an optical element is classified in Class 206, Special Receptacle or Package, particularly subclasses 5+ for eyeglasses or spectacles and subclasses 316.1+ for other optical or photos:graphic devices or elements.

SEE OR SEARCH CLASS

15, Brushing, Scrubbing, and General Cleaning,

300.1+, for clean-ing machines involving air blast or suction.

134, Cleaing and Liquid Contact With Sol-ids, appropriate subclasses.

427, Coating Processes, 162+, for an optical element produced with a coating process.