Land vehicles – Wheeled – Convertible
Reexamination Certificate
2005-04-19
2005-04-19
Vanaman, Frank (Department: 3618)
Land vehicles
Wheeled
Convertible
C182S020000
Reexamination Certificate
active
06880835
ABSTRACT:
A combination hand truck, dolly and step ladder device includes a hand truck frame and a step ladder frame that are pivotally attached to one another and can be fixed at selective angles with respect to each other to form a hand truck, a dolly and a step ladder. In a step ladder configuration, the top step of a step assembly is secured to a cross member of the hand truck frame so as to lock the hand truck frame and the step ladder frame into a substantially fixed relationship to one another. In a dolly configuration, the hand truck frame becomes the handle for the dolly, and is held in place by a support bar that pivotally attaches to the hand truck frame and secures to the step ladder frame.
REFERENCES:
patent: 118096 (1871-08-01), Bergmann
patent: 119339 (1871-09-01), Evans
patent: 432869 (1890-07-01), Fry
patent: 466899 (1892-01-01), Bourell
patent: 518698 (1894-04-01), Pipes
patent: 695161 (1902-03-01), Linkert
patent: 867754 (1907-10-01), Randall
patent: 938952 (1909-11-01), Berg
patent: 1116779 (1914-11-01), Witt
patent: 1221579 (1917-04-01), Olds
patent: 1226324 (1917-05-01), Gage
patent: 1478204 (1923-12-01), Cooney et al.
patent: 1601250 (1926-09-01), Hilderbrand
patent: 1938507 (1933-12-01), Wilson
patent: 2271332 (1942-01-01), Ellington
patent: 2990764 (1961-07-01), Wilder
patent: 3104889 (1963-09-01), Branch
patent: 3430972 (1969-03-01), Fiedler
patent: 3434566 (1969-03-01), Miller
patent: 3561787 (1971-02-01), Toda et al.
patent: 3643292 (1972-02-01), Mayer
patent: 3655012 (1972-04-01), Hoffman et al.
patent: 3713510 (1973-01-01), O'Dell
patent: 3785669 (1974-01-01), Doheny
patent: 3857460 (1974-12-01), Nini
patent: 3954155 (1976-05-01), Guidara
patent: 3955240 (1976-05-01), Schuh et al.
patent: D249032 (1978-08-01), Tarran
patent: 4106590 (1978-08-01), Tarran
patent: 4191397 (1980-03-01), Kassai
patent: 4235449 (1980-11-01), Tarran
patent: 4253546 (1981-03-01), Uchida
patent: 4258826 (1981-03-01), Murray
patent: 4258827 (1981-03-01), Klose
patent: 4261435 (1981-04-01), Winter
patent: 4326731 (1982-04-01), Woychio et al.
patent: 4341393 (1982-07-01), Gordon et al.
patent: 4448282 (1984-05-01), Giezendanner
patent: 4456094 (1984-06-01), Brander
patent: 4474264 (1984-10-01), Krause
patent: 4494626 (1985-01-01), Ast
patent: 4543006 (1985-09-01), Wang
patent: 4577986 (1986-03-01), Wang
patent: 4635956 (1987-01-01), Morrissette
patent: 4730697 (1988-03-01), Campbell
patent: 4770559 (1988-09-01), Yoo
patent: 4798304 (1989-01-01), Rader
patent: 4824167 (1989-04-01), King
patent: 4846486 (1989-07-01), Hobson
patent: 4887837 (1989-12-01), Bonewicz, Jr. et al.
patent: 4934485 (1990-06-01), Purkapile
patent: 5022118 (1991-06-01), Wan-Li
patent: 5058239 (1991-10-01), Lee
patent: 5064020 (1991-11-01), Eagleson
patent: 5142739 (1992-09-01), Lin
patent: 5161811 (1992-11-01), Cheng
patent: 5257799 (1993-11-01), Cone et al.
patent: 5306027 (1994-04-01), Cheng
patent: 5382032 (1995-01-01), Wilson
patent: 5427393 (1995-06-01), Kriebel
patent: 5507508 (1996-04-01), Liang
patent: 5562299 (1996-10-01), Morrissette
patent: 5669659 (1997-09-01), Dittmer
patent: 5836595 (1998-11-01), Brice
patent: 5871227 (1999-02-01), Huang
patent: 6039149 (2000-03-01), Bedja et al.
patent: 6059158 (2000-05-01), Hsu
patent: 6102479 (2000-08-01), Wallace
patent: 6131926 (2000-10-01), Harlan
patent: 6158749 (2000-12-01), Roudebush
patent: 6173811 (2001-01-01), Tornabene et al.
patent: 6196560 (2001-03-01), Ohlsson
patent: 6238125 (2001-05-01), Lin
patent: 6308967 (2001-10-01), Stallbaumer et al.
patent: 6328319 (2001-12-01), Stahler, Sr.
patent: 6328330 (2001-12-01), Haaser
patent: 6390495 (2002-05-01), Cates
patent: 6454050 (2002-09-01), Gibson et al.
patent: 6474663 (2002-11-01), Becker
patent: 6505707 (2003-01-01), Berry
patent: 6530583 (2003-03-01), Mueller
patent: 6651774 (2003-11-01), Yoo
patent: 20010045718 (2001-11-01), Boirum
patent: 20030012595 (2003-01-01), Park et al.
patent: 2004032 (1970-08-01), None
patent: 1004185 (1952-03-01), None
patent: 753922 (1956-08-01), None
patent: 8900002 (1990-08-01), None
Babkes Mitchell H.
Howell Henry J.
Tornabene Dean
Kavcioglu Kathy Mojibi
Sylmark Holdings Limited
Vanaman Frank
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