Two-step heavy-duty stepladder

- Tricam Industries, Inc.
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of a two-step heavy-duty stepladder showing our design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left elevation view thereof;

FIG. 5 is a right elevation view thereof;

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

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings are included for the purpose of illustrating portions of the two-step heavy-duty ladder and form no part of the claimed design.

Claims

We claim the ornamental design for two-step heavy-duty stepladder, as shown and described.

Referenced Cited
U.S. Patent Documents
2470053 May 1949 Salisbury
2485413 October 1949 Ross
2650014 August 1953 Harrison
2865546 December 1958 Shull
2899008 August 1959 Larson
2957542 October 1960 Rizzuto
3446310 May 1969 Alfie
3625388 December 1971 Golden et al.
3744591 July 1973 Lucci et al.
4270463 June 2, 1981 Korzon
4452484 June 5, 1984 Pastor
4485892 December 4, 1984 Maloney
4502564 March 5, 1985 Kümmerlin et al.
4586586 May 6, 1986 Canals
4653713 March 31, 1987 Hamilton
4936463 June 26, 1990 Tiramani
4979590 December 25, 1990 Bailey
5035389 July 30, 1991 Wang
5052581 October 1, 1991 Christ et al.
5120013 June 9, 1992 Sweeney
5240214 August 31, 1993 Bimbaum
5337857 August 16, 1994 Spait
5370263 December 6, 1994 Brown
5421428 June 6, 1995 Ingles
5573081 November 12, 1996 Bartnicki et al.
5584357 December 17, 1996 Gugel
5613574 March 25, 1997 Melanson
5622010 April 22, 1997 Weber
5673885 October 7, 1997 Pham
5722507 March 3, 1998 Kain
5740883 April 21, 1998 Trank
5782314 July 21, 1998 Zeitler
5873433 February 23, 1999 Katz
5913380 June 22, 1999 Gugel
5967260 October 19, 1999 Spak
6012548 January 11, 2000 Kim
6098748 August 8, 2000 Harper, Jr. et al.
6347687 February 19, 2002 Alim
6390237 May 21, 2002 Kim et al.
6390238 May 21, 2002 Gibson
6401862 June 11, 2002 Caron
6427805 August 6, 2002 Gibson
6443260 September 3, 2002 Katz
6443261 September 3, 2002 Gibson
6467577 October 22, 2002 Charlebois, Jr.
6550579 April 22, 2003 Gibson
6698699 March 2, 2004 Bailey
6883529 April 26, 2005 Kvaternik
6902034 June 7, 2005 Gibson et al.
7000732 February 21, 2006 Briggs, Jr.
7032711 April 25, 2006 Katz et al.
7108103 September 19, 2006 Meeker
7128187 October 31, 2006 Simpson
D541432 April 24, 2007 Rapp
7204343 April 17, 2007 Seaman
D548364 August 7, 2007 Skubic
D554771 November 6, 2007 Skubic
7370726 May 13, 2008 Chavez
7415933 August 26, 2008 Sagol
7648108 January 19, 2010 Peterson
7861826 January 4, 2011 Meyers et al.
7886872 February 15, 2011 Astor
7931123 April 26, 2011 Moldthan
7967111 June 28, 2011 Meyers et al.
D642283 July 26, 2011 Ericksson
8186481 May 29, 2012 Moss et al.
8272478 September 25, 2012 Astor
8453796 June 4, 2013 Astor
8579083 November 12, 2013 Astor
8596454 December 3, 2013 Carlson
8997931 April 7, 2015 Parker
9309718 April 12, 2016 Matthew
9428958 August 30, 2016 Ellis
D766461 September 13, 2016 Moss et al.
D766462 September 13, 2016 Moss et al.
D777350 January 24, 2017 Moss et al.
9714541 July 25, 2017 Astor
9714542 July 25, 2017 Harcz
9850706 December 26, 2017 Astor
D833643 November 13, 2018 Foley
10138680 November 27, 2018 Williams et al.
D838386 January 15, 2019 Woodward
10184292 January 22, 2019 Latimer
10208538 February 19, 2019 Astor
10619416 April 14, 2020 Snell
10633918 April 28, 2020 Wulfekotte
10648234 May 12, 2020 Skubic
D889689 July 7, 2020 Russell
10709238 July 14, 2020 Thompson
D898944 October 13, 2020 Green
10801263 October 13, 2020 Dangrow
D920541 May 25, 2021 Mittanck
D921224 June 1, 2021 Mittanck
11167407 November 9, 2021 McGee
11220862 January 11, 2022 Skubic et al.
D972169 December 6, 2022 Yan
11655676 May 23, 2023 Foley
20020017430 February 14, 2002 Rosko
20020017431 February 14, 2002 Gibson
20020104709 August 8, 2002 Hines
20030029676 February 13, 2003 Gibson
20040000449 January 1, 2004 Meeker
20040007424 January 15, 2004 Simpson
20060006024 January 12, 2006 Till
20070120028 May 31, 2007 Kane
20070163837 July 19, 2007 Dyer
20070181369 August 9, 2007 Gibson
20070193829 August 23, 2007 Aster
20070240935 October 18, 2007 O'Brien
20070284191 December 13, 2007 Astor
20070284192 December 13, 2007 Meyers
20090078504 March 26, 2009 Astor
20090272602 November 5, 2009 Kocher
20100224445 September 9, 2010 Moss et al.
20110024234 February 3, 2011 Lin
20120211305 August 23, 2012 Moss et al.
20120217093 August 30, 2012 Latimer
20120228059 September 13, 2012 Lampe et al.
20130146394 June 13, 2013 Astor
20130270037 October 17, 2013 Pensieri
20140054112 February 27, 2014 Astor
20140224585 August 14, 2014 Russell
20140326538 November 6, 2014 Najey
20140332316 November 13, 2014 Tiber et al.
20150014094 January 15, 2015 Brooks
20150090533 April 2, 2015 Moss et al.
20150159434 June 11, 2015 Leng
20160024845 January 28, 2016 Coe
20160038789 February 11, 2016 Cheyne
20160177626 June 23, 2016 Miller
20160348434 December 1, 2016 Williams
20170251826 September 7, 2017 Sclare
20170328131 November 16, 2017 Woodward et al.
20200170419 June 4, 2020 Sclare et al.
20200270946 August 27, 2020 Lawery
20210037989 February 11, 2021 Rogers
20230119062 April 20, 2023 Zhu
Foreign Patent Documents
2007101150 January 2008 AU
2777593 October 1999 FR
2816984 May 2002 FR
WO 2010/084135 July 2010 WO
Other references
  • Polder® 3-Step Ladder. Crate and Barrel, http://www.crateandbarrel.com/polder-3-step-ladder/s451498, accessed May 6, 2015.
  • Cosco Signature Series 6 ft. Premium Aluminum Step Ladder, Home Depot, http://www.homedepot.com/p/Cosco-Signature-Series-6-ft-Premium-Aluminum-Step-Ladder-2061AABLD/203642157, accessed May 6, 2015.
  • Werner 4 ft. Fiberglass Platform Step Ladder with 375 lb. Load Capacity Type IAA Duty Rating. Home Depot, http://www.homedepot.com/p/Werner-4-ft-Fiberglass-Platform-Step-Ladder-with-375-lb-Load-Capacity-Type-IAA-Duty-Rating-P7404/203134335, accessed May 6, 2015.
  • Application and File History for U.S. Appl. No. 14/617,441, filed Feb. 9, 2015. Inventors: Jeff Skubic et al.
  • Application and File History for U.S. Appl. No. 16/834,561, filed Mar. 30, 2020. Inventors: Jeff Skubic et al.
Patent History
Patent number: D1009303
Type: Grant
Filed: Feb 7, 2022
Date of Patent: Dec 26, 2023
Assignee: Tricam Industries, Inc. (Eden Prairie, MN)
Inventors: Benjamin M. Wernberg (Savage, MN), Joseph P. Foley (St. Paul, MN), Benjamin P. Williams (Chaska, MN)
Primary Examiner: Gino Colan
Application Number: 29/825,908
Classifications
Current U.S. Class: Step Stool Type (D25/65)