US PATENT SUBCLASS 210 / 454
.~.~ Filter element attached to closure

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

348  DF  FILTER {25}
435  DF  .~ Within flow line or flow line connected close casing {9}
454.~.~ Filter element attached to closure

DEFINITION

Classification: 210/454

(under subclass 435) Apparatus in which the filter element is

fixed to a removable closure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

244+, for a portable receptacle type filter with a closure.

309, for a filter element attached to a sediment trap.

447, for a filter element laterally removable from a flow line even though attached to a closure.