US PATENT SUBCLASS 501 / 37
.~.~.~ Optical fibers

Current as of: June, 1999
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501 /   HD   COMPOSITIONS: CERAMIC

1  DF  CERAMIC COMPOSITIONS {15}
11  DF  .~ Glass compositions, compositions containing glass other than those wherein glass is a bonding agent, or glass batch forming compositions {11}
35  DF  .~.~ Fibers {3}
37.~.~.~ Optical fibers

DEFINITION

Classification: 501/37

Optical fibers:

(under subclass 35) Fibers which are intended to be used as conductors of light in fiber optics applications.

(1) Note. Such fibers may have the so-called core and clad construction, and where the core and cladding components are defined in terms of their composition without recitation of specific optics use enhancing structural features, they are classified herein.

SEE OR SEARCH CLASS

385, Optical Waveguides, appropriate subclasses for fiber optics reciting significant optical structure.