Optical: systems and elements – Signal reflector – 3-corner retroreflective
Reexamination Certificate
2011-05-31
2011-05-31
Allen, Stephone B (Department: 2872)
Optical: systems and elements
Signal reflector
3-corner retroreflective
Reexamination Certificate
active
07950813
ABSTRACT:
Adoption of composite cube-corner retroreflective elements in which groups of each at least two sub-retroreflective elements which are each defined by three lateral faces mutually crossing at approximately right angles, as being configured by three-directional V-shaped parallel groove groups having substantially symmetrical sections and intersecting with each other, and which are arrayed in the closest-packed state, projecting on one side of their common sub-plane (SH-SH), each of said groups of sub-reflective elements being disposed on one main retroreflective element which is defined by three lateral faces mutually crossing at approximately right angles, as being configured by three-directional V-shaped parallel groove groups having substantially symmetrical sections and intersecting with each other, and which is disposed on the main plane (S-S).
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Allen Stephone B
Doak Jennifer L.
Fitzpatrick ,Cella, Harper & Scinto
Nippon Carbide Kogyo Kabushiki Kaisha
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