|
US2372860A
(en)
*
|
1939-12-07 |
1945-04-03 |
Hoover Co |
Suction cleaner
|
|
US2594458A
(en)
*
|
1948-03-31 |
1952-04-29 |
Hoover Co |
Filter attachment for suction cleaners
|
|
SE372415B
(en)
*
|
1972-09-22 |
1974-12-23 |
Electrolux Ab |
|
|
USD333891S
(en)
*
|
1990-07-11 |
1993-03-09 |
Black & Decker Inc. |
Filter for a vacuum cleaner
|
|
US5192344A
(en)
*
|
1991-09-10 |
1993-03-09 |
Andre E. Thorn Bacon |
Wet filter vacuum cleaner
|
|
USD417268S
(en)
*
|
1996-04-26 |
1999-11-30 |
Donaldson Company, Inc. |
Oval filter
|
|
USD400323S
(en)
*
|
1996-08-19 |
1998-10-27 |
W. L. Gore & Associates, Inc. |
Filter for a wet/dry vacuum cleaner
|
|
USD437402S1
(en)
*
|
1999-11-05 |
2001-02-06 |
Donaldson Company, Inc. |
Filter element with centerpiece
|
|
USD497202S1
(en)
*
|
2002-11-22 |
2004-10-12 |
Donaldson Company, Inc. |
Filter for engine
|
|
USD484584S1
(en)
*
|
2003-01-22 |
2003-12-30 |
Donaldson Company, Inc. |
Filter element for engine
|
|
US7135051B2
(en)
*
|
2003-06-05 |
2006-11-14 |
Baldinger Russell L |
Dirt cup filter with pre-filtration cap
|
|
USD495105S1
(en)
*
|
2003-06-05 |
2004-08-24 |
Russell L. Baldinger |
Filter cup assembly for a vacuum cleaner
|
|
USD506539S1
(en)
*
|
2004-03-24 |
2005-06-21 |
Donaldson Company, Inc. |
Filter cartridge
|
|
USD541399S1
(en)
*
|
2005-09-08 |
2007-04-24 |
Royal Appliance Mfg. Co. |
Filter assembly
|
|
USD521137S1
(en)
*
|
2005-01-14 |
2006-05-16 |
Royal Appliance Mfg. Co. |
Filter
|
|
USD520127S1
(en)
*
|
2005-01-14 |
2006-05-02 |
Royal Appliance Mfg. Co. |
Filter assembly
|
|
US7655062B2
(en)
*
|
2005-02-10 |
2010-02-02 |
Euro-Pro Operating, Llc |
Filter assembly for a vacuum cleaner
|
|
US7374594B2
(en)
*
|
2005-11-23 |
2008-05-20 |
Emerson Electric Co. |
Filter and system for improved sealing and ease of attachment on a vacuum cleaner
|
|
US7374595B2
(en)
*
|
2005-11-23 |
2008-05-20 |
Emerson Electric Co. |
Filter and system for improved sealing on a vacuum cleaner
|
|
ATE514367T1
(en)
*
|
2007-04-04 |
2011-07-15 |
Black & Decker Inc |
FILTER CLEANING MECHANISMS
|
|
CA126037S
(en)
*
|
2007-11-23 |
2009-01-22 |
Dyson Ltd |
Rolling support for a vacuum cleaner
|
|
USD601320S1
(en)
*
|
2008-10-01 |
2009-09-29 |
Emerson Electric Co. |
Filter for a wet/dry vacuum cleaner
|
|
US8192623B2
(en)
*
|
2009-04-01 |
2012-06-05 |
Wix Filtration Corp Llc |
Filter structure
|
|
USD706831S1
(en)
*
|
2011-02-11 |
2014-06-10 |
Briggs & Stratton Corporation |
Air filter
|
|
USD711608S1
(en)
*
|
2013-05-14 |
2014-08-19 |
Erin Claire O'Shaughnessy |
Vacuum attachment for collecting small particles
|
|
USD804004S1
(en)
*
|
2013-09-04 |
2017-11-28 |
Mann+Hummel Gmbh |
Air filter element
|
|
US9550139B2
(en)
*
|
2014-03-04 |
2017-01-24 |
Vincent James Madonia |
Apparatus and system for cleaning a filter
|
|
USD786935S1
(en)
*
|
2015-11-20 |
2017-05-16 |
Baldwin Filters, Inc. |
Filter element
|
|
USD798907S1
(en)
*
|
2015-11-20 |
2017-10-03 |
Baldwin Filters, Inc. |
Filter element
|
|
US10464746B2
(en)
*
|
2016-12-28 |
2019-11-05 |
Omachron Intellectual Property Inc. |
Dust and allergen control for surface cleaning apparatus
|
|
USD852345S1
(en)
*
|
2017-04-07 |
2019-06-25 |
Champion Laboratories, Inc. |
Filter
|
|
USD914187S1
(en)
*
|
2017-10-06 |
2021-03-23 |
Kohler Co. |
Air cleaner filter
|
|
USD914309S1
(en)
*
|
2018-12-10 |
2021-03-23 |
Dyson Technology Limited |
Filter for vacuum cleaners
|
|
GB2581969A
(en)
*
|
2019-03-04 |
2020-09-09 |
Numatic Int Ltd |
Collapsible filter cartridge
|
|
EP3730022B1
(en)
*
|
2019-04-25 |
2021-04-14 |
Sprintus GmbH |
Filter element
|
|
USD946733S1
(en)
*
|
2020-07-05 |
2022-03-22 |
Champion Laboratories, Inc. |
Filter frame
|