United States Patent D835233

Coelho, Nathan (Leo, IN, US)
Davenport, Michael (Fort Wayne, IN, US)
Application Number:
Publication Date:
Filing Date:
Master Spas, Inc. (Fort Wayne, IN, US)
Primary Class:
International Classes:
(IPC1-7): 2301
Field of Search:
D23/209, D23/207, 210/440, 285/360-361
View Patent Images:
US Patent References:
D810859Water filter2018-02-20LuD23/209
D810232Filter element2018-02-13SchwartzD23/209
20180028950Filter Assembly For Retaining Wall Drain Holes2018-02-01Heilman
D793525Filter cap2017-08-01MorrisD23/209
20170028326FILTER ASSEMBLY2017-02-02Till
D770592Filter element2016-11-01SchwartzD23/209
D770011Manifold engagement portion of a filter cartridge2016-10-25NelsonD23/209
D754304Filter cap2016-04-19MorrisD23/260
D753789Pre-coat filter element2016-04-12RaabD23/209
D751170Water filter mount assembly2016-03-08RuprechtD23/209
D735293Filter element2015-07-28SchwartzD23/209
D730731Cap2015-06-02Bewley, Jr.D9/447
D729344Water filter housing sieve2015-05-12ColussiD23/209
D726869Filter element2015-04-14LepineD23/209
D717395Filter element cap2014-11-11NetoD23/209
20120080372Filter System with Fuel-Water Separator2012-04-05Ries210/440
D656577Fuel filter2012-03-27SalvadorD23/209
D648822Fuel filter2011-11-15SalvadorD23/209
20100243554Fluid Filter Assembly2010-09-30Herrin et al.
7416663Replacement filter cartridge assembly having an internal lock ring2008-08-26Kott et al.
20070241045Replaceable tandem filter cartridge assembly2007-10-18Kott et al.
D548307Filter element2007-08-07ReynoldsD23/209
6962660Fluid filter system with secondary flow path for augmented filtration2005-11-08Wybo
20040124129Filter element assembly and parts therefor2004-07-01Booth
D412551End cap for a cylindrical filter1999-08-03SmithD23/209
D403740Filter1999-01-05Kott et al.
5314623Method for treating fluids1994-05-24Heskett
5211846Replacement filter cartridge assembly1993-05-18Kott et al.
5198118Method for treating fluids1993-03-30Heskett
5135654Method for treating fluids1992-08-04Heskett
D320062End cap for a filter cartridge1991-09-17MeissnerD23/209
D318091Water purifier1991-07-09ShermanD23/209
D318094Water purifier1991-07-09ShermanD23/209
D306640Liquid filter cartridge for swimming pools or the like1990-03-13KottD23/209
D306199Cover plate for a filter cartridge for a spa or swimming pool water filter1990-02-20Meissner
D294167Cover plate for a filter cartridge1988-02-09MeissnerD23/209
D246109Fluid filter1977-10-18RosaenD23/209
3348689Concentric filter elements having assembling and locking means1967-10-24Kraissl, Jr.
3347386Multiple element filter assembly1967-10-17Kraissl, Jr.
D181664N/ADecember, 1957MullerD23/209

Other References:
Nathan Coelho et al., Related unpublished Utility U.S. Appl. No. 15/791,206, filed Oct. 23, 2017.
Primary Examiner:
Attorney, Agent or Firm:
Kaplan Breyer Schwarz, LLP (Matawan, NJ, US)

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


FIG. 1 is a top front right perspective view of a filter showing our new design, shown in a first embodiment;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a top front right perspective view of the filter of FIG. 1, shown in a second embodiment;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a rear elevational view thereof;

FIG. 11 is a left elevational view thereof;

FIG. 12 is a right elevational view thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom plan view thereof.

The portions shown in the figures in broken lines do not constitute part of the claimed design.