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Extendospheres Trademarks
EXTENDOSPHERES
Fly ash for use in the manufacture of hollow microspheres as lightweight filler for plastic and concrete
Registered
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June 10, 2015
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86657864
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EXTENDOSPHERES
particulate material consisting of hollow glass microspheres useful as fillers for plastics and paints
Cancelled
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April 12, 1991
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74156429
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EXTENDOSPHERES
Particulate Material Consisting of Hollow Glass Micro Balloons Useful as Fillers for Plastics and Paints
Cancelled
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June 5, 1979
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73218515
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