The broken lines shown in the figures are included for the purpose of illustrating portions of the hinge for a multi-position ladder and form no part of the claimed design.
The broken lines shown in the figures are included for the purpose of illustrating portions of the hinge for a multi-position ladder and form no part of the claimed design.
| Number | Name | Date | Kind |
|---|---|---|---|
| 53566 | Brown | Apr 1866 | A |
| 140156 | Olsson | Jun 1873 | A |
| 162075 | Isaacs et al. | Apr 1875 | A |
| 317024 | Schumann | May 1885 | A |
| 413730 | Palmer | Oct 1889 | A |
| 445453 | Nowland | Jan 1891 | A |
| 502967 | Hetrick et al. | Aug 1893 | A |
| 749670 | Gardner | Jan 1904 | A |
| 834653 | Barrett | Oct 1906 | A |
| 935306 | Jennings | Sep 1909 | A |
| 1283212 | Kloepfer et al. | Oct 1918 | A |
| 1702249 | Davidson | Feb 1929 | A |
| 1778898 | Joseph | Oct 1930 | A |
| 1942210 | Walter | Jan 1934 | A |
| 2090331 | Kutscheid | Aug 1937 | A |
| 2109886 | Lewis | Mar 1938 | A |
| 2144440 | Gaffers | Jan 1939 | A |
| 2186119 | Moen | Jan 1940 | A |
| 2207923 | Kelso | Jul 1940 | A |
| 2280691 | Edelmann | Apr 1942 | A |
| 2385171 | Cowles | Sep 1945 | A |
| 2525104 | St. Cyr | Oct 1950 | A |
| 2587177 | Larson | Feb 1952 | A |
| 2596521 | Bell | May 1952 | A |
| 2650014 | Harrison | Aug 1953 | A |
| 2805104 | Johnson-Ross | Sep 1957 | A |
| 2899011 | Babits | Aug 1959 | A |
| 2952301 | Ervin et al. | Sep 1960 | A |
| D189419 | Bair | Dec 1960 | S |
| 3005513 | Larson | Oct 1961 | A |
| 3085651 | Howard | Apr 1963 | A |
| 3224530 | Marvin et al. | Dec 1965 | A |
| 3269485 | Larson | Aug 1966 | A |
| D212086 | Gilman | Aug 1968 | S |
| 3476211 | Cormier | Nov 1969 | A |
| 3481026 | Lindesmith et al. | Dec 1969 | A |
| 3495684 | Homery | Feb 1970 | A |
| 3625388 | Golden et al. | Dec 1971 | A |
| 3647606 | Notaro | Mar 1972 | A |
| 3692143 | Kummerlin et al. | Sep 1972 | A |
| D225493 | Rossi | Dec 1972 | S |
| 3744591 | Lucci et al. | Jul 1973 | A |
| 3811151 | Kuemmerlin | May 1974 | A |
| 3842936 | De Luca | Oct 1974 | A |
| 3869901 | Neary | Mar 1975 | A |
| 3999629 | Schaffer et al. | Dec 1976 | A |
| 4027741 | Derrick | Jun 1977 | A |
| 4031981 | Spencer | Jun 1977 | A |
| 4060150 | Hughes | Nov 1977 | A |
| 4061203 | Spencer et al. | Dec 1977 | A |
| D248777 | Spencer et al. | Aug 1978 | S |
| 4153137 | Johnson | May 1979 | A |
| 4155422 | Larson et al. | May 1979 | A |
| RE30020 | Spencer et al. | Jun 1979 | E |
| 4182431 | Wing | Jan 1980 | A |
| 4204587 | Larson | May 1980 | A |
| 4210224 | Kummerlin et al. | Jul 1980 | A |
| 4216844 | Klafs | Aug 1980 | A |
| 4276955 | Hickman | Jul 1981 | A |
| 4298093 | Wing | Nov 1981 | A |
| 4306700 | Bell | Dec 1981 | A |
| 4310134 | Schopp et al. | Jan 1982 | A |
| 4356854 | McGee | Nov 1982 | A |
| 4371055 | Ashton et al. | Feb 1983 | A |
| 4376470 | Ashton | Mar 1983 | A |
| 4407045 | Boothe | Oct 1983 | A |
| 4440264 | Knoke et al. | Apr 1984 | A |
| 4469193 | Rumsey, Jr. | Sep 1984 | A |
| 4470045 | Anderson | Sep 1984 | A |
| 4474264 | Krause | Oct 1984 | A |
| 4483415 | Disston et al. | Nov 1984 | A |
| 4485892 | Maloney et al. | Dec 1984 | A |
| 4491354 | Williams | Jan 1985 | A |
| 4494626 | Ast | Jan 1985 | A |
| 4502556 | Bartholet | Mar 1985 | A |
| 4502564 | Kuemmerlin et al. | Mar 1985 | A |
| 4502566 | Wing | Mar 1985 | A |
| 4560030 | Mucelli | Dec 1985 | A |
| 4566150 | Boothe | Jan 1986 | A |
| 4577986 | Wang | Mar 1986 | A |
| 4602889 | Mu-Shan | Jul 1986 | A |
| 4645371 | Wang | Feb 1987 | A |
| 4666327 | Su | May 1987 | A |
| 4666328 | Ryu | May 1987 | A |
| 4697305 | Boothe | Oct 1987 | A |
| 4715297 | Lichter | Dec 1987 | A |
| 4723631 | Tremblay | Feb 1988 | A |
| 4770559 | Yoo | Sep 1988 | A |
| 4773503 | Purpkapile | Sep 1988 | A |
| 4793163 | Macfarlane et al. | Dec 1988 | A |
| 4824278 | Chang | Apr 1989 | A |
| 4834216 | Wallick, Jr. | May 1989 | A |
| 4859109 | Targetti | Aug 1989 | A |
| 4890950 | Yoo | Jan 1990 | A |
| 4925329 | Chuang | May 1990 | A |
| D309502 | Wing et al. | Jul 1990 | S |
| 4949811 | Bailey | Aug 1990 | A |
| 4951780 | Kim | Aug 1990 | A |
| 4974701 | Parise | Dec 1990 | A |
| 5022118 | Wan-Li | Jun 1991 | A |
| 5026198 | Lin | Jun 1991 | A |
| 5052581 | Christ et al. | Oct 1991 | A |
| 5056620 | Zumwalt et al. | Oct 1991 | A |
| 5058239 | Lee | Oct 1991 | A |
| 5074377 | Krause | Dec 1991 | A |
| 5137240 | Van Meter | Aug 1992 | A |
| 5163532 | McCarty | Nov 1992 | A |
| D335966 | Schwartzkopf et al. | Jun 1993 | S |
| 5228535 | NcCarty | Jul 1993 | A |
| 5353892 | Lu | Oct 1994 | A |
| 5366051 | Bartnicki et al. | Nov 1994 | A |
| 5368347 | Holtman et al. | Nov 1994 | A |
| 5386907 | Kahl et al. | Feb 1995 | A |
| 5419409 | Corulla | May 1995 | A |
| 5438938 | Meeker et al. | Aug 1995 | A |
| 5460240 | Jones | Oct 1995 | A |
| 5487207 | Rey | Jan 1996 | A |
| 5505302 | Ferley | Apr 1996 | A |
| 5507460 | Schneider et al. | Apr 1996 | A |
| 5547080 | Klimas | Aug 1996 | A |
| 5603405 | Smith | Feb 1997 | A |
| 5613574 | Melanson | Mar 1997 | A |
| 5620272 | Sheng | Apr 1997 | A |
| 5636706 | Plotner et al. | Jun 1997 | A |
| 5673885 | Pham | Oct 1997 | A |
| D387878 | Jacques | Dec 1997 | S |
| D388882 | Kain | Jan 1998 | S |
| 5722507 | Kain | Mar 1998 | A |
| 5727649 | Buckley | Mar 1998 | A |
| 5740883 | Trank | Apr 1998 | A |
| 5762163 | Kain | Jun 1998 | A |
| 5775460 | Stone | Jul 1998 | A |
| 5788072 | Chen | Aug 1998 | A |
| 5791439 | Plotner et al. | Aug 1998 | A |
| 5826719 | Chen | Oct 1998 | A |
| D401353 | Bell et al. | Nov 1998 | S |
| 5873433 | Katz | Feb 1999 | A |
| 5873463 | Purcell | Feb 1999 | A |
| D410550 | Meyers | Jun 1999 | S |
| 5913380 | Gugel et al. | Jun 1999 | A |
| D411888 | King | Jul 1999 | S |
| 5930872 | McBride et al. | Aug 1999 | A |
| 5937968 | Gibson et al. | Aug 1999 | A |
| D414566 | Gibson et al. | Sep 1999 | S |
| 5954157 | Grimes et al. | Sep 1999 | A |
| D414879 | Meyers | Oct 1999 | S |
| 5967260 | Spak | Oct 1999 | A |
| 5971102 | Brown | Oct 1999 | A |
| D416092 | Meyers | Nov 1999 | S |
| 5992566 | Yeh | Nov 1999 | A |
| 5992567 | Chiu | Nov 1999 | A |
| 6000497 | Kain et al. | Dec 1999 | A |
| 6012548 | Kim | Jan 2000 | A |
| 6024412 | Kain et al. | Feb 2000 | A |
| 6026933 | King et al. | Feb 2000 | A |
| 6039149 | Bedja et al. | Mar 2000 | A |
| D433156 | Gibson et al. | Oct 2000 | S |
| 6142255 | Plotner et al. | Nov 2000 | A |
| D434855 | Ullum et al. | Dec 2000 | S |
| 6158749 | Roudebush | Dec 2000 | A |
| D444574 | Gibson et al. | Jul 2001 | S |
| D447572 | Rosko | Sep 2001 | S |
| D447817 | Rosko | Sep 2001 | S |
| D449385 | Rosko | Oct 2001 | S |
| 6330733 | Rauschenberger | Dec 2001 | B1 |
| 6334509 | Ryszkiewicz | Jan 2002 | B1 |
| 6341666 | Allen | Jan 2002 | B1 |
| 6343406 | Yeh | Feb 2002 | B1 |
| 6347687 | Alim | Feb 2002 | B1 |
| D455842 | Rosko | Apr 2002 | S |
| 6390237 | Kim et al. | May 2002 | B1 |
| 6390238 | Gibson et al. | May 2002 | B1 |
| D458385 | Rosko | Jun 2002 | S |
| 6401862 | Caron | Jun 2002 | B1 |
| D460566 | Henschel et al. | Jul 2002 | S |
| 6427805 | Gibson et al. | Aug 2002 | B1 |
| 6443260 | Katz et al. | Sep 2002 | B1 |
| 6443261 | Gibson et al. | Sep 2002 | B1 |
| 6450290 | Spak | Sep 2002 | B1 |
| 6454050 | Gibson et al. | Sep 2002 | B2 |
| 6467577 | Charlebois | Oct 2002 | B1 |
| D465289 | Gibson et al. | Nov 2002 | S |
| D466225 | Rosko | Nov 2002 | S |
| 6536557 | Gibson et al. | Mar 2003 | B2 |
| 6550579 | Gibson et al. | Apr 2003 | B2 |
| 6588547 | Yeh | Jul 2003 | B2 |
| 6622340 | Rosa | Sep 2003 | B2 |
| 6688797 | Park | Feb 2004 | B2 |
| 6766881 | Carty | Jul 2004 | B2 |
| 6769515 | Hillebrecht et al. | Aug 2004 | B2 |
| 6840583 | Turner et al. | Jan 2005 | B1 |
| 6854803 | Tomas et al. | Feb 2005 | B2 |
| 6857503 | Simpson et al. | Feb 2005 | B2 |
| 6886659 | Simpson | May 2005 | B2 |
| 6902035 | Baumgartner et al. | Jun 2005 | B2 |
| 6966404 | Meeker | Nov 2005 | B2 |
| 6986405 | Meeker | Jan 2006 | B2 |
| 6991063 | Latimer et al. | Jan 2006 | B2 |
| 7007771 | Rawlings et al. | Mar 2006 | B2 |
| 7093321 | Burbrink et al. | Aug 2006 | B2 |
| 7095428 | Harrison | Aug 2006 | B2 |
| 7104362 | Meeker | Sep 2006 | B2 |
| 7108103 | Meeker | Sep 2006 | B2 |
| 7128187 | Simpson | Oct 2006 | B2 |
| 7140072 | Leng | Nov 2006 | B2 |
| 7159694 | Gibson | Jan 2007 | B2 |
| 7182176 | Gibson et al. | Feb 2007 | B2 |
| 7188706 | Simpson | Mar 2007 | B2 |
| D548364 | Skubic et al. | Aug 2007 | S |
| D548855 | Meyers | Aug 2007 | S |
| 7264082 | Simpson et al. | Sep 2007 | B2 |
| D553370 | Meyers et al. | Oct 2007 | S |
| D554771 | Skubic et al. | Nov 2007 | S |
| D558473 | Mendenhall | Jan 2008 | S |
| D562991 | Meyers et al. | Feb 2008 | S |
| D565745 | Meyers et al. | Apr 2008 | S |
| 7370727 | Meeker | May 2008 | B2 |
| 7383920 | Meeker | Jun 2008 | B2 |
| D576290 | Meyers et al. | Sep 2008 | S |
| 7516817 | Pate et al. | Apr 2009 | B2 |
| 7648108 | Peterson | Jan 2010 | B2 |
| 7861826 | Meyers et al. | Jan 2011 | B2 |
| 7931123 | Moldthan et al. | Apr 2011 | B2 |
| 7967111 | Meyers et al. | Jun 2011 | B2 |
| 8002084 | Huang | Aug 2011 | B2 |
| 8042653 | Grebinoski et al. | Oct 2011 | B2 |
| 8146710 | Moldthan et al. | Apr 2012 | B2 |
| 8186481 | Moss et al. | May 2012 | B2 |
| 8186550 | Sampson | May 2012 | B2 |
| 8210313 | Astor | Jul 2012 | B2 |
| 8579083 | Astor | Nov 2013 | B2 |
| 8661991 | Eveleth | Mar 2014 | B2 |
| D710031 | Simpson et al. | Jul 2014 | S |
| 8869937 | Lampe et al. | Oct 2014 | B2 |
| 8919497 | Rund | Dec 2014 | B2 |
| 8997931 | Parker et al. | Apr 2015 | B2 |
| 9016434 | Moss et al. | Apr 2015 | B2 |
| 9163455 | Moss et al. | Oct 2015 | B2 |
| D749715 | Lammel | Feb 2016 | S |
| 9380760 | Rorke et al. | Jul 2016 | B2 |
| 9404305 | Messick | Aug 2016 | B1 |
| 9416591 | Kieffer et al. | Aug 2016 | B2 |
| 9422767 | Russell et al. | Aug 2016 | B2 |
| D766461 | Moss et al. | Sep 2016 | S |
| D766462 | Moss et al. | Sep 2016 | S |
| 9488002 | Parker et al. | Nov 2016 | B2 |
| 9512675 | Fast | Dec 2016 | B1 |
| 20020017430 | Rosko | Feb 2002 | A1 |
| 20020017431 | Gibson et al. | Feb 2002 | A1 |
| 20020166727 | Cramer et al. | Nov 2002 | A1 |
| 20030037412 | Lee | Feb 2003 | A1 |
| 20030146046 | Simpson | Aug 2003 | A1 |
| 20030146047 | Simpson | Aug 2003 | A1 |
| 20030217888 | Simpson et al. | Nov 2003 | A1 |
| 20040000449 | Meeker | Jan 2004 | A1 |
| 20040007424 | Simpson | Jan 2004 | A1 |
| 20040140156 | Moss et al. | Jul 2004 | A1 |
| 20040140409 | Radda | Jul 2004 | A1 |
| 20050029043 | Latimer et al. | Feb 2005 | A1 |
| 20050029050 | Baumgartner et al. | Feb 2005 | A1 |
| 20050051386 | Simpson | Mar 2005 | A1 |
| 20050056233 | O'Leary et al. | Mar 2005 | A1 |
| 20050065029 | Harrison et al. | Mar 2005 | A1 |
| 20050109558 | Simpson et al. | May 2005 | A1 |
| 20050173194 | Pate et al. | Aug 2005 | A1 |
| 20050274571 | Simpson et al. | Dec 2005 | A1 |
| 20060070806 | Simpson | Apr 2006 | A1 |
| 20060102425 | Moldthan | May 2006 | A1 |
| 20060225961 | Elliott | Oct 2006 | A1 |
| 20060266585 | Simpson | Nov 2006 | A1 |
| 20070181367 | Astor | Aug 2007 | A1 |
| 20070181368 | Simpson | Aug 2007 | A1 |
| 20070284192 | Meyers et al. | Dec 2007 | A1 |
| 20080006480 | Simpson et al. | Jan 2008 | A1 |
| 20080053751 | Meyers et al. | Mar 2008 | A1 |
| 20080142301 | Meyers et al. | Jun 2008 | A1 |
| 20080251317 | Johnson | Oct 2008 | A1 |
| 20080251319 | Meyers et al. | Oct 2008 | A1 |
| 20080296447 | Peterson | Dec 2008 | A1 |
| 20090078504 | Astor | Mar 2009 | A1 |
| 20090179455 | Ogden | Jul 2009 | A1 |
| 20090229918 | Moss et al. | Sep 2009 | A1 |
| 20100101012 | Sampson | Apr 2010 | A1 |
| 20100200334 | Moldthan et al. | Aug 2010 | A1 |
| 20100236866 | Huang | Sep 2010 | A1 |
| 20110011674 | Kim | Jan 2011 | A1 |
| 20110024234 | Lin | Feb 2011 | A1 |
| 20110056766 | Maglieri et al. | Mar 2011 | A1 |
| 20110272923 | Chen | Nov 2011 | A1 |
| 20120181109 | Rund | Jul 2012 | A1 |
| 20120273304 | Lampe et al. | Nov 2012 | A1 |
| 20140054112 | Astor | Feb 2014 | A1 |
| 20140123910 | Rorke et al. | May 2014 | A1 |
| 20140131138 | Simpson et al. | May 2014 | A1 |
| 20140190768 | Moss et al. | Jul 2014 | A1 |
| 20140224585 | Russell | Aug 2014 | A1 |
| 20150074980 | Wesgardh et al. | Mar 2015 | A1 |
| 20150159434 | Leng | Jun 2015 | A1 |
| 20150211297 | Parker et al. | Jul 2015 | A1 |
| 20150308190 | Skubic et al. | Oct 2015 | A1 |
| 20160143444 | Lan | May 2016 | A1 |
| 20160222730 | Yeh | Aug 2016 | A1 |
| 20160348434 | Williams et al. | Dec 2016 | A1 |
| Number | Date | Country |
|---|---|---|
| 348116 | Feb 1935 | CA |
| 2315585 | Feb 2001 | CA |
| 2354696 | Feb 2002 | CA |
| 2418581 | Aug 2003 | CA |
| 2381213 | Jul 2004 | CA |
| 2465252 | Nov 2004 | CA |
| 2476584 | Mar 2005 | CA |
| 2341556 | Sep 2005 | CA |
| 2354996 | Oct 2005 | CA |
| 2466777 | Jan 2008 | CA |
| 2466856 | Apr 2008 | CA |
| 2881525 | Sep 2015 | CA |
| 1601043 | Mar 2005 | CN |
| 102431801 | May 2012 | CN |
| 103485709 | Jan 2014 | CN |
| 189419 | Sep 1906 | DE |
| 3320315 | Dec 1984 | DE |
| 0135666 | Apr 1985 | EP |
| 1388638 | Feb 2004 | EP |
| 1473432 | Nov 2004 | EP |
| 1375816 | Jan 2006 | EP |
| 1865143 | Dec 2007 | EP |
| 1561898 | May 2008 | EP |
| 2090740 | Aug 2009 | EP |
| 2554501 | May 1985 | FR |
| 2175948 | Dec 1986 | GB |
| 2175948 | Oct 1988 | GB |
| 2322897 | Sep 1998 | GB |
| 2486938 | Sep 2015 | GB |
| WO2000042286 | Jul 2000 | WO |
| WO2000050725 | Aug 2000 | WO |
| WO2001012926 | Feb 2001 | WO |
| WO2016090041 | Jun 2016 | WO |