Static structures (e.g. – buildings) – Frangible section or means – Removable corner or internal section
Reexamination Certificate
2005-02-15
2005-02-15
Friedman, Carl D. (Department: 3635)
Static structures (e.g., buildings)
Frangible section or means
Removable corner or internal section
C052S098000, C052S604000, C052S603000, C052S561000, C052S606000, C052S592600, C405S286000, CD25S113000, CD25S115000
Reexamination Certificate
active
06854220
ABSTRACT:
Retaining wall blocks and the walls made from such blocks are disclosed, wherein curved landscapes (i.e. curved profiles and sloping embankments) are easily accommodated without the use of mortar. As well, a modular system of blocks and their manufacture are disclosed wherein some blocks are used in vertical orientations and some in horizontal orientations.
REFERENCES:
patent: 3269070 (1966-08-01), Stoy
patent: 3905170 (1975-09-01), Huettemann
patent: 4964761 (1990-10-01), Rossi
patent: 6082057 (2000-07-01), Sievert
patent: 6223493 (2001-05-01), Ruggeri
patent: 6490837 (2002-12-01), Dueck et al.
patent: 6543969 (2003-04-01), Adam
Crooks Richard Blair
Dueck Vernon John
Nguyen Chi Q
Pacific Precast Products Ltd.
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