Filter assembly for an air purifier
United States Patent D857868

Combs, Raymond C. (San Jose, CA, US)
Han, Chunxiao (Dublin, CA, US)
Harden, Daniel Kendall (Palo Alto, CA, US)
Derby, Cole Justin (East Palo Alto, CA, US)
Application Number:
Publication Date:
Filing Date:
SPRIMO, INC. (Santa Clara, CA, US)
Primary Class:
International Classes:
(IPC1-7): 2304
Field of Search:
D23/209, D23/341, D23/358, D23/363-365, D15/5
View Patent Images:
US Patent References:
D813274Engine air cleaner housing2018-03-20PlattD15/5
D807483Air purifier2018-01-09CombsD23/364
20170260936SUPER-PLEATED VEHICLE AIR FILTER2017-09-14Williams
9707503Filter arrangement; sealing system; and methods2017-07-18Gieseke
D762833Air filter for air conditioner2016-08-02OggD23/365
D708728Air cleaner2014-07-08YooD23/364
D704226Piston for pneumatic automotive lifting device2014-05-06LeeD15/5
D681678Circular in-line air filter2013-05-07PortilloD15/5
D615149Filter block for liquid filtration2010-05-04ReidD23/209
D565715Air freshener device2008-04-01WuD23/366
D541399Filter assembly2007-04-24KhalilD23/365
D464129Filter element with pinched seal2002-10-08XuD23/365
D372079Fan filterJuly, 1996FagoD23/209
D365388Portable room air purifier with flush vertical grid one-piece cover and shroud1995-12-19WilliamsD23/332
D293796Air cleaner coverJanuary, 1988NagyD15/5
D269294Filter cartridge1983-06-07RakocyD23/365
D225738N/AJanuary, 1973SchwartzD23/364

Other References:
Sprimo Air Purifier/Filter reference found online [May 31, 2017]—http://icrowdnewswire.com/2016/04/18/sprimo-personal-air-purifier-worlds-smartest-personal-air-purifier/.
Primary Examiner:
Rogers, Lakiya G.
Assistant Examiner:
Voytek, John A.
Attorney, Agent or Firm:
Fish IP Law, LLP

1. The ornamental design for a filter assembly for an air purifier, as shown and described.


FIG. 1 is a top, front, right side perspective view of a filter assembly for an air purifier of the new design removed from an environment of use for clarity of disclosure.

FIG. 2 is a top, rear, right side perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left side elevation view thereof, the right side elevation view being a mirror image.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof.

FIG. 8 is a top, front, right side perspective view thereof, shown in an environment of use; and,

FIG. 9 is a rear elevation view, thereof.

The broken lines shown in FIGS. 1 and 3 are for purposes of illustrating portions of the filter assembly for an air purifier that forms no part of the claim. The broken lines shown in FIGS. 8 and 9 are for the purposes of illustrating and environment that forms no part of the claim.