





| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| US29/246,770USD576290S1 (en) | 2006-05-09 | 2006-05-09 | Step ladder | 
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| US29/246,770USD576290S1 (en) | 2006-05-09 | 2006-05-09 | Step ladder | 
| Publication Number | Publication Date | 
|---|---|
| USD576290S1true USD576290S1 (en) | 2008-09-02 | 
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| US29/246,770Expired - LifetimeUSD576290S1 (en) | 2006-05-09 | 2006-05-09 | Step ladder | 
| Country | Link | 
|---|---|
| US (1) | USD576290S1 (en) | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| USD710031S1 (en) | 2012-11-15 | 2014-07-29 | Tricam Industries, Inc. | Step stool | 
| USD722181S1 (en)* | 2013-09-09 | 2015-02-03 | Lock N Climb, Llc | Ladder | 
| US9016434B2 (en) | 2011-02-22 | 2015-04-28 | Wing Enterprises, Inc. | Ladders, ladder components and related methods | 
| US9038776B2 (en) | 2009-04-03 | 2015-05-26 | Lock N Climb, Llc | Collapsible safe ladder | 
| USD733931S1 (en) | 2013-09-09 | 2015-07-07 | Lock N Climb, Llc | Ladder towing apparatus | 
| USD734500S1 (en) | 2013-09-09 | 2015-07-14 | Lock N Climb, Llc | Ladder towing apparatus | 
| US9163455B2 (en) | 2008-03-07 | 2015-10-20 | Wing Enterprises, Inc. | Ladders, ladder components and related methods | 
| USD745191S1 (en) | 2014-05-27 | 2015-12-08 | Lock N Climb, Llc | Ladder | 
| USD766462S1 (en)* | 2014-09-04 | 2016-09-13 | Wing Enterprises, Inc. | Ladder | 
| USD766461S1 (en)* | 2014-09-04 | 2016-09-13 | Wing Enterprises, Inc. | Ladder | 
| USD813416S1 (en) | 2014-09-04 | 2018-03-20 | Wing Enterprises, Incorporated | Top cap for ladder | 
| USD855833S1 (en) | 2017-01-04 | 2019-08-06 | Tricam Industries, Inc. | Ladder rail | 
| USD860476S1 (en) | 2017-01-04 | 2019-09-17 | Tricam Industries, Inc. | Hinge for a multi-position ladder | 
| US10487576B2 (en) | 2016-03-04 | 2019-11-26 | Wing Enterprises, Incorporated | Adjustment mechanisms, ladders incorporating same and related methods | 
| US10597941B2 (en) | 2013-09-27 | 2020-03-24 | Wing Enterprises, Incorporated | Step ladders, components for step ladders and related methods | 
| US11441356B2 (en) | 2018-06-08 | 2022-09-13 | Wing Enterprises, Incorporated | Ladders, top cap for ladders and trays for ladders | 
| USD966557S1 (en)* | 2018-10-19 | 2022-10-11 | Little Giant Ladder Systems, Llc | Ladder | 
| USD969347S1 (en)* | 2018-10-19 | 2022-11-08 | Little Giant Ladder Systems, Llc | Flip-up ladder | 
| USD970045S1 (en)* | 2018-07-20 | 2022-11-15 | Little Giant Ladder Systems, Llc | Ladder | 
| USD970046S1 (en)* | 2018-07-20 | 2022-11-15 | Little Giant Ladder Systems, Llc | Ladder | 
| USD1005526S1 (en)* | 2023-05-26 | 2023-11-21 | Fuling Ma | Ladder | 
| USD1089715S1 (en)* | 2023-07-31 | 2025-08-19 | Jiaxing Explorer Metal Products Co., Ltd. | Handrail ladder | 
| USD1090905S1 (en)* | 2024-06-20 | 2025-08-26 | Zhejiang Kangqian Industry & Trade Co., Ltd. | Ladder | 
| USD1091868S1 (en) | 2023-11-04 | 2025-09-02 | Jiaxing Explorer Metal Products Co., Ltd. | Ladder | 
| USD1097206S1 (en)* | 2024-03-01 | 2025-10-07 | Luhao Leng | Ladder | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| US4204587A (en)* | 1978-10-13 | 1980-05-27 | White Metal Rolling And Stamping Corp. | Ladder constructions | 
| US4371055A (en)* | 1980-11-07 | 1983-02-01 | Little Giant Industries, Inc. | Method of manufacturing a fiberglass ladder | 
| US4560030A (en)* | 1984-05-04 | 1985-12-24 | Metarplastic S.P.A. | Folding ladder | 
| US4834216A (en)* | 1987-01-15 | 1989-05-30 | Emerson Electric Co. | Foldable ladder structure and method of manufacturing the same | 
| USD331289S (en)* | 1990-10-19 | 1992-11-24 | Davis Thomas W | Ladder attached paint can support | 
| USD388882S (en) | 1996-01-11 | 1998-01-06 | Cosco, Inc. | Combined work ladder and platform | 
| US5722507A (en) | 1996-01-11 | 1998-03-03 | Cosco, Inc. | Step stool assembly | 
| US6000497A (en) | 1997-01-09 | 1999-12-14 | Cosco, Inc. | Detachable tray for step stool | 
| USD433156S (en) | 1999-08-13 | 2000-10-31 | Cosco Management, Inc. | Step stool | 
| USD444574S1 (en) | 1999-01-08 | 2001-07-03 | Cosco Management, Inc. | Step stool | 
| USD449385S1 (en) | 2000-08-11 | 2001-10-16 | Cosco Management, Inc. | Step stool with tray | 
| US6390238B1 (en) | 1999-08-13 | 2002-05-21 | Cosco Management, Inc. | Foldable step stool with leg lock and handle | 
| US6427805B1 (en) | 1999-01-08 | 2002-08-06 | Cosco Management, Inc. | Folding step stool | 
| US6443261B1 (en) | 1999-08-13 | 2002-09-03 | Cosco Management, Inc. | Step stool | 
| USD466225S1 (en) | 2001-01-09 | 2002-11-26 | Cosco Management, Inc. | Step stool with tray | 
| US6536557B2 (en) | 2001-08-09 | 2003-03-25 | Cosco Management, Inc. | Utility tray for step stool | 
| US6550579B2 (en) | 2000-08-11 | 2003-04-22 | Cosco Management, Inc. | Step stool | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| US4204587A (en)* | 1978-10-13 | 1980-05-27 | White Metal Rolling And Stamping Corp. | Ladder constructions | 
| US4371055A (en)* | 1980-11-07 | 1983-02-01 | Little Giant Industries, Inc. | Method of manufacturing a fiberglass ladder | 
| US4560030A (en)* | 1984-05-04 | 1985-12-24 | Metarplastic S.P.A. | Folding ladder | 
| US4834216A (en)* | 1987-01-15 | 1989-05-30 | Emerson Electric Co. | Foldable ladder structure and method of manufacturing the same | 
| USD331289S (en)* | 1990-10-19 | 1992-11-24 | Davis Thomas W | Ladder attached paint can support | 
| USD388882S (en) | 1996-01-11 | 1998-01-06 | Cosco, Inc. | Combined work ladder and platform | 
| US5722507A (en) | 1996-01-11 | 1998-03-03 | Cosco, Inc. | Step stool assembly | 
| US6000497A (en) | 1997-01-09 | 1999-12-14 | Cosco, Inc. | Detachable tray for step stool | 
| US6427805B1 (en) | 1999-01-08 | 2002-08-06 | Cosco Management, Inc. | Folding step stool | 
| USD444574S1 (en) | 1999-01-08 | 2001-07-03 | Cosco Management, Inc. | Step stool | 
| US6390238B1 (en) | 1999-08-13 | 2002-05-21 | Cosco Management, Inc. | Foldable step stool with leg lock and handle | 
| USD433156S (en) | 1999-08-13 | 2000-10-31 | Cosco Management, Inc. | Step stool | 
| US6443261B1 (en) | 1999-08-13 | 2002-09-03 | Cosco Management, Inc. | Step stool | 
| USD449385S1 (en) | 2000-08-11 | 2001-10-16 | Cosco Management, Inc. | Step stool with tray | 
| US6550579B2 (en) | 2000-08-11 | 2003-04-22 | Cosco Management, Inc. | Step stool | 
| USD466225S1 (en) | 2001-01-09 | 2002-11-26 | Cosco Management, Inc. | Step stool with tray | 
| US6536557B2 (en) | 2001-08-09 | 2003-03-25 | Cosco Management, Inc. | Utility tray for step stool | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| US9163455B2 (en) | 2008-03-07 | 2015-10-20 | Wing Enterprises, Inc. | Ladders, ladder components and related methods | 
| US10767416B2 (en) | 2008-03-07 | 2020-09-08 | Wing Enterprises, Incorporated | Ladders, ladder components and related methods | 
| US11788351B2 (en) | 2008-03-07 | 2023-10-17 | Little Giant Ladder Systems, Llc | Ladders, ladder components and related methods | 
| US9784033B2 (en) | 2008-03-07 | 2017-10-10 | Wing Enterprises, Incorporated | Ladders, ladder components and related methods | 
| US12352107B2 (en) | 2008-03-07 | 2025-07-08 | Little Giant Ladder Systems, Llc | Ladders, ladder components and related methods | 
| US12359508B2 (en) | 2008-03-07 | 2025-07-15 | Little Giant Ladder Systems, Llc | Ladders, ladder components and related methods | 
| US9038776B2 (en) | 2009-04-03 | 2015-05-26 | Lock N Climb, Llc | Collapsible safe ladder | 
| US11846137B2 (en) | 2011-02-22 | 2023-12-19 | Little Giant Ladder Systems, Llc | Ladders, ladder components and related methods | 
| US10501990B2 (en) | 2011-02-22 | 2019-12-10 | Wing Enterprises, Incorporated | Ladders, ladder components and related methods | 
| US9016434B2 (en) | 2011-02-22 | 2015-04-28 | Wing Enterprises, Inc. | Ladders, ladder components and related methods | 
| USD710031S1 (en) | 2012-11-15 | 2014-07-29 | Tricam Industries, Inc. | Step stool | 
| USD734500S1 (en) | 2013-09-09 | 2015-07-14 | Lock N Climb, Llc | Ladder towing apparatus | 
| USD733931S1 (en) | 2013-09-09 | 2015-07-07 | Lock N Climb, Llc | Ladder towing apparatus | 
| USD722181S1 (en)* | 2013-09-09 | 2015-02-03 | Lock N Climb, Llc | Ladder | 
| US10597941B2 (en) | 2013-09-27 | 2020-03-24 | Wing Enterprises, Incorporated | Step ladders, components for step ladders and related methods | 
| USD745191S1 (en) | 2014-05-27 | 2015-12-08 | Lock N Climb, Llc | Ladder | 
| USD813416S1 (en) | 2014-09-04 | 2018-03-20 | Wing Enterprises, Incorporated | Top cap for ladder | 
| USD838385S1 (en)* | 2014-09-04 | 2019-01-15 | Wing Enterprises, Incorporated | Ladder | 
| USD829346S1 (en)* | 2014-09-04 | 2018-09-25 | Wing Enterprises, Inc. | Ladder | 
| USD766462S1 (en)* | 2014-09-04 | 2016-09-13 | Wing Enterprises, Inc. | Ladder | 
| USD766461S1 (en)* | 2014-09-04 | 2016-09-13 | Wing Enterprises, Inc. | Ladder | 
| US10487576B2 (en) | 2016-03-04 | 2019-11-26 | Wing Enterprises, Incorporated | Adjustment mechanisms, ladders incorporating same and related methods | 
| US11421475B2 (en) | 2016-03-04 | 2022-08-23 | Little Giant Ladder Systems, Llc | Adjustment mechanisms, ladders incorporating same and related methods | 
| USD855833S1 (en) | 2017-01-04 | 2019-08-06 | Tricam Industries, Inc. | Ladder rail | 
| USD860476S1 (en) | 2017-01-04 | 2019-09-17 | Tricam Industries, Inc. | Hinge for a multi-position ladder | 
| US12065882B2 (en) | 2018-06-08 | 2024-08-20 | Little Giant Ladder Systems, Llc | Combination ladders, ladder components and related methods | 
| US12152445B2 (en) | 2018-06-08 | 2024-11-26 | Little Giant Ladder Systems, Llc | Combination ladders, ladder components and related methods | 
| US11441356B2 (en) | 2018-06-08 | 2022-09-13 | Wing Enterprises, Incorporated | Ladders, top cap for ladders and trays for ladders | 
| USD970046S1 (en)* | 2018-07-20 | 2022-11-15 | Little Giant Ladder Systems, Llc | Ladder | 
| USD970045S1 (en)* | 2018-07-20 | 2022-11-15 | Little Giant Ladder Systems, Llc | Ladder | 
| USD999404S1 (en)* | 2018-10-19 | 2023-09-19 | Little Giant Ladder Systems, Llc | Ladder | 
| USD969347S1 (en)* | 2018-10-19 | 2022-11-08 | Little Giant Ladder Systems, Llc | Flip-up ladder | 
| USD966557S1 (en)* | 2018-10-19 | 2022-10-11 | Little Giant Ladder Systems, Llc | Ladder | 
| USD1005526S1 (en)* | 2023-05-26 | 2023-11-21 | Fuling Ma | Ladder | 
| USD1089715S1 (en)* | 2023-07-31 | 2025-08-19 | Jiaxing Explorer Metal Products Co., Ltd. | Handrail ladder | 
| USD1091868S1 (en) | 2023-11-04 | 2025-09-02 | Jiaxing Explorer Metal Products Co., Ltd. | Ladder | 
| USD1097206S1 (en)* | 2024-03-01 | 2025-10-07 | Luhao Leng | Ladder | 
| USD1090905S1 (en)* | 2024-06-20 | 2025-08-26 | Zhejiang Kangqian Industry & Trade Co., Ltd. | Ladder | 
| Publication | Publication Date | Title | 
|---|---|---|
| USD576290S1 (en) | Step ladder | |
| USD565745S1 (en) | Step stool | |
| USD566694S1 (en) | Headset | |
| USD566737S1 (en) | Robot | |
| USD590301S1 (en) | Automobile | |
| USD544594S1 (en) | Diffuser | |
| USD559755S1 (en) | Step for an automobile | |
| USD557685S1 (en) | MP3 player-combined headphone | |
| USD560209S1 (en) | Speaker | |
| USD571785S1 (en) | Speaker | |
| USD560958S1 (en) | Oven range | |
| USD582394S1 (en) | Audio component | |
| USD557689S1 (en) | Earphone | |
| USD561214S1 (en) | Robot | |
| USD605560S1 (en) | Automobile | |
| USD592553S1 (en) | Vehicle | |
| USD583124S1 (en) | Forklift | |
| USD573794S1 (en) | String case | |
| USD551737S1 (en) | Hand shower | |
| USD592554S1 (en) | Automobile | |
| USD583609S1 (en) | Beerkeg | |
| USD554993S1 (en) | Cap | |
| USD587614S1 (en) | Alarm | |
| USD579772S1 (en) | Cap | |
| USD606469S1 (en) | Mirror assembly |