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Class Information
Number: 404/21
Name: Road structure, process, or apparatus > Pavement > Anti-slip surface > Including metal
Description: Anti-slip surface structure characterized by the inclusion of exposed metal elements in the surface.

Patents under this class:

Patent Number Title Of Patent Date Issued
7544010 Portable porous pavement system and methods Jun. 9, 2009
7182548 One-piece safety cleat Feb. 27, 2007
7029744 High traction flooring laminate Apr. 18, 2006
6971818 Tactile warning surfaces for walkways and method Dec. 6, 2005
6450728 Paving tile for guidance of blind persons Sep. 17, 2002
6071039 Structure of surface portions of grounds Jun. 6, 2000
6065266 Light structural metal plate in the form of a hump plate and process for its production May. 23, 2000
6061980 Cushioning pad May. 16, 2000
5608937 Portable ramp Mar. 11, 1997
5587218 Surface covering Dec. 24, 1996
5395673 Non-slip surface Mar. 7, 1995
5368947 Method of producing a slip-resistant substrate by depositing raised, bead-like configurations of a compatible material at select locations thereon, and a substrate including same Nov. 29, 1994
5194113 Process for making conformable thermoplastic marking sheet Mar. 16, 1993
5085912 Wear resistant floor covering Feb. 4, 1992
4540438 Ferrosilicon aggregate for concrete and resins Sep. 10, 1985
4356037 Abrasion resistant coating Oct. 26, 1982
4304187 Monorail system Dec. 8, 1981
4272211 Wear resistant slab Jun. 9, 1981

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