Water purification filter
United States Patent D696745

Hammerback, Jason (Fergus Falls, MN, US)
Application Number:
Publication Date:
Filing Date:
MRLB International, Inc. (Fergus Falls, MN, US)
Primary Class:
International Classes:
(IPC1-7): 2301
Field of Search:
D23/207, D23/209, 210/266, 210/232, 210/282
View Patent Images:
US Patent References:
7507338Universal water purifier unit assembly deviceMarch, 2009Bommi et al.
6899868Iodine/resin disinfectant and a procedure for the preparation thereofMay, 2005Messier
6224764Apparatus for purifying and disinfecting waterMay, 2001Matyushin et al.
D438591Pocket-sized water-sterilizerMarch, 2001FroeberD23/207
D432622Filter cartridgeOctober, 2000Thompson et al.D23/209
D408493De-ionized water rinse nozzleApril, 1999YeiserD23/207
D408886Individual device for purifying and disinfecting waterApril, 1999Matyushin et al.D23/207
D405867Water purifierFebruary, 1999Denkewicz et al.D23/209
5830360Pour through and pitcher mounted water filter for removal of parasite cysts, bacteria and viruses and method of filtrating waterNovember, 1998Mozayeni
5556279Water purification system for dental instrumentSeptember, 1996Wolf et al.
5518613Portable water purifying and drinking deviceMay, 1996Koczur et al.210/266
5370534Water purification system for dental instrumentDecember, 1994Wolf et al.
D351892Water purification cartridge for a dental instrumentOctober, 1994Wolf et al.
5273649Personal water purification systemsDecember, 1993Magnusson et al.210/232
5230624Water purification system for dental instrumentJuly, 1993Wolf et al.
5045195Personal drinking water purification tubeSeptember, 1991Spangrud et al.210/266

Foreign References:
EP0432906June, 1991Filter.
GB2270846March, 1994
Primary Examiner:
Webster, Robin V.
Attorney, Agent or Firm:
Viksnins Harris & Padys PLLP

1. The ornamental design for a water purification filter, as shown and described.


FIG. 1 is a perspective view of a water purification filter showing my new design.

FIG. 2 is a first end view of the water purification filter of FIG. 1.

FIG. 3 is a second end view of the water purification filter of FIG. 1; and,

FIG. 4 is a side view of the water purification filter of FIG. 1.

The claimed design is shown fragmented in FIGS. 1 and 4 to represent non-specified length.