Buoys – rafts – and aquatic devices – Water skimming or walking device – Surfboard
Reexamination Certificate
2007-12-04
2007-12-04
Swinehart, Ed (Department: 3617)
Buoys, rafts, and aquatic devices
Water skimming or walking device
Surfboard
C114S357000
Reexamination Certificate
active
11325297
ABSTRACT:
A sports board (15) comprising an elongated expanded closed-cell polyolefin foam core (16) having an upper surface (18), an opposed lower surface (19), a side surface (20) extending between the upper surface and the lower surface, a core density and a core thickness, a top polyolefin film layer (21) having an inner surface (22), an outer surface (23), a top film density and a top film thickness less than the core thickness, an intermediate metallocene-based polyolefin layer (24) having an intermediate thickness less than the core thickness and laminated directly between the upper surface of the core and the inner surface of the top layer, an expanded polyolefin foam side strip (25) having an inner surface (26), an outer surface (28) and a side strip density greater than the core density, the inner surface of the side strip laminated to the side surface of the core to cover, partially or completely, the side surface of the core, and a bottom polyolefin film layer (29) having an outer surface (30), an inner surface (31), a bottom film density and a bottom film thickness less than the core thickness, the bottom film layer laminated to the core.
REFERENCES:
patent: 4850913 (1989-07-01), Szabad, Jr.
patent: 5882776 (1999-03-01), Bambara et al.
Cheng Clement
Swinehart Ed
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