Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Reexamination Certificate
2005-03-29
2005-03-29
Cole, Elizabeth M. (Department: 1771)
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
C428S181000, C428S212000, C428S220000, C428S913000, C442S389000, C055S527000, C096S108000
Reexamination Certificate
active
06872431
ABSTRACT:
A preferred filter media is provided. The media includes a fine fiber web secured to the surface of a coarse fiber support. A preferred filter media, comprising multiple layers of fine fiber media separated by coarse fiber support, is provided. Advantageous filter constructions result and are provided. Also according to the disclosure, methods for using such arrangements to filter are provided.
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Dudrey Denis J.
Kahlbaugh Brad
Cole Elizabeth M.
Donaldson & Company, Inc.
Merchant & Gould P,C,
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