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Publication numberUSD221850 S
Publication typeGrant
Publication dateSep 14, 1971
Filing dateMar 2, 1970
Publication numberUS D221850 S, US D221850S, US-S-D221850, USD221850 S, USD221850S
InventorsDouglas West Anderson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Filter housing
US D221850 S
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

Des. 221,850 Patented Sept. 14, 1971 FILTER HOUSING Douglas West Anderson, Palatine, Ill., assignor to Morton International, Inc., Chicago, Ill.

Filed Mar. 2, 1970, Ser. No. 21,698

Term of patent 14 years Int. Cl. D23-0] US. Cl. D23-4 Hi I ?AGE I References Cited UNITED STATES PATENTS Sicard D234 Payne D23-4 Gutkowski.

Thomas 210444X Gailitis et a1. 210444X JAMES R. LARGEN, Primary Examiner

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US7615152Aug 19, 2003Nov 10, 2009Pur Water Purification Products, Inc.Water filter device
US7740765May 13, 2009Jun 22, 2010The Procter & Gamble CompanyMethods for treating water
US7740766May 13, 2009Jun 22, 2010The Procter & Gamble Companyfiltration through mesoporous activated carbon filter particles; killing or removal of bacteria, viruses, and microorganisms; particles coated with silver or a silver containing material
US7749394May 13, 2009Jul 6, 2010The Procter & Gamble CompanyMethods of treating water
US7850859May 13, 2009Dec 14, 2010The Procter & Gamble CompanyTreating low-pressure, untreated drinking water with a water treatment device comprising a storage housing and mesoporous activated carbon filter particles; pore size adequate toremove bacteria and viruses; potable drinking water forthird-world countries
US7922008 *Jul 10, 2009Apr 12, 2011The Procter & Gamble CompanyWater filter materials and water filters containing a mixture of microporous and mesoporous carbon particles
US8119012Mar 7, 2011Feb 21, 2012The Procter & Gamble CompanyWater filter materials and water filters containing a mixture of microporous and mesoporous carbon particles