Land vehicles – Wheeled – Extensible
Reexamination Certificate
2007-07-17
2009-10-20
Ellis, Christopher P (Department: 3618)
Land vehicles
Wheeled
Extensible
C280S656000, C280S047340, C219S121450, C219S124310, C016S019000
Reexamination Certificate
active
07604244
ABSTRACT:
An invention is provided which comprises a welding carriage having a base, rear wheel assemblies disposed at one end of the base, a first front wheel assembly attachment member disposed on a second side of the base, and a first front wheel assembly configured to removably engage with the front wheel assembly attachment member to securely couple with the base. The welding carriage may also include a second front wheel assembly attachment member disposed on a second side of the base, and a second front wheel assembly configured to removably engage with at least the at least one front wheel assembly attachment member to securely couple with the base. The carriage may also include at least two welding attachment portions, where both welding attachment portions have the same cross-sectional characteristics.
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patent: 3201561 (1965-08-01), Damon
patent: 4131783 (1978-12-01), Kensrue et al.
patent: 4328412 (1982-05-01), Watanabe et al.
patent: 7241973 (2007-07-01), Di Novo et al.
patent: 2008/0093345 (2008-04-01), Enyedy et al.
patent: 1327494 (2003-07-01), None
patent: 2008033653 (2008-03-01), None
Boehnlein Lawrence A
Enyedy Edward
Klein Jeffrey R
Petrila Lucian
Ellis Christopher P
Lincoln Global Inc.
Paul Hastings Janofsky & Walker LLP
Walters John D
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