Air filter
United States Patent D452302

Hagen, Sean R. (Winter Park, FL)
Application Number:
Publication Date:
Filing Date:
Dart Industries Inc. (Orlando, FL)
Primary Class:
Field of Search:
D23/365, D23/364, 96/97, 55/472, 422/120
View Patent Images:
US Patent References:
D420439Combined air filter and grillFebruary, 2000Ediger et al.D23/365
D402745Air purifierDecember, 1998Termeer et al.
D402746Portable air cleanerDecember, 1998Clark et al.
D395492DehumidifierJune, 1998Phhillips et al.
D384140HumidifierSeptember, 1997Jane' et al.
D382635HumidifierAugust, 1997Jane et al.
D377523Air cleanerJanuary, 1997Marvin et al.
D376419HumidifierDecember, 1996Seaman et al.
D375546Air purifierNovember, 1996Lee
D374921Humidifier housingOctober, 1996Jane et al.
D371192Air cleaner consoleJune, 1996Putro
D362296Air purifier unitSeptember, 1995Schmidt
D361374Air cleanerAugust, 1995Muller
D358461HumidifierMay, 1995Barker et al.
D275317Combined air ionizer and cleanerAugust, 1984Beck
D266585Room air cleanerOctober, 1982Rakoey et al.

Primary Examiner:
Lichtenstein, Lisa
Attorney, Agent or Firm:
Doninger, John A.
Ross, Taylor J.
1. The ornamental design for an air filter, as shown and described.


FIG. 1 is a top and front perspective view of an air filter showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a top plan view thereof.