Ceiling ventilation fan
United States Patent D857873

Shimada, Yashio (Osaka, JP)
Mase, Nobuyuki (Nara, JP)
Application Number:
Publication Date:
Filing Date:
Panasonic Intellectual Property Management Co., Ltd. (Osaka, JP)
Primary Class:
Other Classes:
International Classes:
(IPC1-7): 2304
Field of Search:
D23/351, D23/352, D23/354, D23/370, D23/371, D23/373-375, D23/379, D23/381, D23/385, D23/386-389, D23/393, D23/411-414, D14/172, D14/214
View Patent Images:
US Patent References:
D833667LED lamp2018-11-13BaoD26/89
D824365Portable speaker2018-07-31Vogt, Jr.D14/214
D816206Ventilation grill2018-04-24JonasD23/385
D808001Square fan grille2018-01-16BerkmanD23/371
D799018Deodorizer for refrigerator2017-10-03KimD23/366
D784299Array microphone assembly2017-04-18ChoD14/209
D784512Ventilator grill2017-04-18JonasD23/388
D777897Air conditioner front panel2017-01-31RizziD23/354
D767748Air conditioner2016-09-27NakaiD23/388
D763422Air conditioner2016-08-09UenoD23/351
D754319Ceiling fan with light2016-04-19ParkD23/385
D713951Vent grille2014-09-23JepsonD23/388
8720966Injection molded cover element with uninterrupted hole pattern2014-05-13Stein296/1.08
8485696Lighting and ventilating system and method2013-07-16Pringle362/228
D623721Apertured cover2010-09-14ReynosoD23/213
D617889Ceiling ventilating fan2010-06-15MiyakeD23/385
D617441Ceiling ventilating fan2010-06-08KouryD23/385
D595402Ventilating fan for a ceiling2009-06-30MiyakeD23/385
D589605Air inlet grille2009-03-31ReedyD23/388
D581510Wiring closet ventilation unit2008-11-25AlbanoD23/388
D581517Grille for a ceiling ventilating fan2008-11-25KouryD23/412
D577431Ceiling ventilating fan2008-09-23MiyakeD23/385
D541927Ventilating louver2007-05-01YamanakaD23/388
D448462Air conditioner2001-09-25NanjoD23/351
D433116Air conditioning ceiling grilleOctober, 2000HanD23/393
D426292Air conditionerJune, 2000NanjoD23/351
D416315Air conditionerNovember, 1999NanjoD23/351
D394101Ventilating fanMay, 1998HayashiD23/370

Foreign References:
JPD1346297December, 2008
Primary Examiner:
Brooks, Cathron C.
Assistant Examiner:
Oum, Sharon S.
Attorney, Agent or Firm:
Panasonic IP Management
Culpepper, Kerry S.

1. We claim the ornamental design for a ceiling ventilation fan, as shown and described.


FIG. 1 is a front perspective view of a ceiling ventilation fan of the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a cross-sectional view thereof, taken along the line 8-8 in FIG. 2.

The broken lines illustrate portions of the ceiling ventilation fan and form no part of the claimed design.