Road structure – process – or apparatus – Pavement – Modules or blocks
Reexamination Certificate
2006-12-04
2009-10-20
Hartmann, Gary S (Department: 3671)
Road structure, process, or apparatus
Pavement
Modules or blocks
C404S040000, C404S041000
Reexamination Certificate
active
07604431
ABSTRACT:
The invention is directed to interlocking ground cover mats that can be used to facilitate the passage of heavy equipment and vehicles on wet or disturbed ground. The ground cover mats are comprised of boards contained within a metal frame. The side surfaces of the mats are connected using an interlock member and an interlock opening. The end surface of the mats is connected using a retaining pin that feeds through openings in perpendicular plates, or alternatively using complimentary pins and recesses.
REFERENCES:
patent: 2315180 (1943-03-01), Arthur
patent: 2316232 (1943-04-01), Fischer
patent: 2335556 (1943-11-01), Wilson
patent: 2635450 (1953-04-01), Orzel
patent: 2737093 (1956-03-01), Greulich
patent: 2942535 (1960-06-01), Spangler
patent: 3078621 (1963-02-01), Hinds
patent: 3469509 (1969-09-01), Hutchinson
patent: 3500606 (1970-03-01), Wharmby
patent: 3602110 (1971-08-01), Wiggins
patent: 3671063 (1972-06-01), Slayden
patent: 4250828 (1981-02-01), Cota
patent: 4462712 (1984-07-01), Penland, Sr.
patent: 4499967 (1985-02-01), Anderson
patent: 4965903 (1990-10-01), Bish
patent: 5022200 (1991-06-01), Wilson et al.
patent: 5054255 (1991-10-01), Maninfior
patent: 5161268 (1992-11-01), Harrow
patent: 5702208 (1997-12-01), Hilfiker et al.
patent: 6089784 (2000-07-01), Ardern
patent: 6185893 (2001-02-01), Gaston
patent: 6595566 (2003-07-01), Donnan
patent: 6733206 (2004-05-01), Stasiewich et al.
patent: 6966161 (2005-11-01), Palsson et al.
patent: 7162838 (2007-01-01), Ardern
patent: 2002/0174961 (2002-11-01), Anderson et al.
patent: 2005/0117969 (2005-06-01), Byrne et al.
patent: 2005/0220539 (2005-10-01), Yee
patent: 2006/0000561 (2006-01-01), Anderson et al.
patent: 2374879 (2002-10-01), None
patent: 2390388 (2004-07-01), None
Bennett Jones LLP
Hartmann Gary S
Maxximat Inc.
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