US PATENT SUBCLASS 210 / 493.1
.~.~ Pleated

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

Internet Version by PATENTEC © 1999      Terms of Use


210 /   HD   LIQUID PURIFICATION OR SEPARATION

348  DF  FILTER {25}
483  DF  .~ Supported, shaped or superimposed formed mediums {11}
493.1.~.~ Pleated {4}
493.2  DF  .~.~.~> Bonded end caps
493.3  DF  .~.~.~> Rectangularly shaped
493.4  DF  .~.~.~> Spirally formed
493.5  DF  .~.~.~> Filter element

DEFINITION

Classification: 210/493.1

Pleated:

(under subclass 483) Apparatus in which the filter medium is folded back and forth upon itself.

SEE OR SEARCH CLASS

55, Gas Separation,

497+, 500, and 521 for gas filters of zig-zag form.