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US Patents

2-(C.sub.1-4 Alkoxy)carbonylamino-4-(2'-C.sub.1-4 alkoxy-4'-halo

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

Patent

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Bloory idea and bloory practical use

Very broad patent, without practical use

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Patented to preserve knowledge

Defensive patent

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Manufacturing base and used to stop/slow down rivals

Serves only patent trolls

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