US PATENT SUBCLASS 501 / 35
.~.~ Fibers

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

Internet Version by PATENTEC © 1999      Terms of Use


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.~.~ Fibers {3}
36  DF  .~.~.~> Mineral fibers (e.g., slag wool, rock wool, mineral wool, etc.)
37  DF  .~.~.~> Optical fibers
38  DF  .~.~.~> Titanium or zirconium containing

DEFINITION

Classification: 501/35

Fibers:

(under subclass 11) Compositions which are in the form of fibers or which are disclosed for use in manufacturing fibers.

(1) Note. Documents classified as originals in this and indented subclasses are cross-referenced on the basis of the chemical nature of the glass composition disclosed into subclasses 40, 41+, and/or 53+, as appropriate.

(2) Note. Documents classified as originals in this and

indented subclasses which disclose optical glass compositions are cross-referenced in subclasses 900+.

SEE OR SEARCH CLASS

428, Stock Material or Miscellaneous Articles, appropriate subclasses for glass fiber batts used for insulation, filters, and other applications.