Buoys – rafts – and aquatic devices – Water skimming or walking device
Reexamination Certificate
2007-09-04
2007-09-04
Olson, Lars A. (Department: 3617)
Buoys, rafts, and aquatic devices
Water skimming or walking device
C441S074000
Reexamination Certificate
active
11103861
ABSTRACT:
This invention relates to a slider, which comprises a polyethylene foam skin, a laminated plastic film and a plastic sheet. The polyethylene foam skin has a density in a range of 1.5 to 12 PCF and a thickness in a range of 1 to 6 mm. The laminated plastic film is heat bonded to a top surface of the polyethylene foam skin entirely and the laminated plastic film has a thickness in range of 0.03 to 0.3 mm. The plastic sheet is heat bonded to a bottom of the polyethylene foam skin entirely and the plastic sheet has a thickness in range of 0.3 to 2 mm. In addition, the laminated plastic film is formed with depressions on both surfaces and the depressions are distributed over the both surfaces of the laminated plastic film.
REFERENCES:
patent: 4850913 (1989-07-01), Szabad, Jr.
patent: 6955576 (2005-10-01), Yeh
patent: 2003/0224675 (2003-12-01), Yeh
Olson Lars A.
Rosenberg , Klein & Lee
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