US PATENT SUBCLASS 351 / 47
.~.~ Removable and/or adjustable filters or screens (e.g., clip-on type)

Current as of: June, 1999
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351 /   HD   OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING

41  DF  SPECTACLES AND EYEGLASSES {29}
44  DF  .~ With antiglare or shading {4}
47.~.~ Removable and/or adjustable filters or screens (e.g., clip-on type) {1}
48  DF  .~.~.~> Spring biased

DEFINITION

Classification: 351/47

(under subclass 44) Subject matter, including colored or other antiglare filter screens removably or adjustably connected with spectacle frames of various styles or sizes.

(1) Note. The filters or shades may be rimmed or rimless and they may cover portions of the glasses only or the entire glasses. The filters or screens classified here are usually combined with the spectacles. Subclass 13 of Class 2 provides for eye shades, per se, which are attachable to spectacles. Semiopague or tinted transparancies which swing selectively between the shading and viewing position are classified in this subclasses 47+.

SEE OR SEARCH CLASS

2, Apparel,

13, for spectacle attached shades. See also (1) Note above.