$20 On application for Re-issue $30 On application for extension of Patent $10 On granting the Extension. $50 On filing application for Design (three and a half years). .$10 On filing application for Design (seven years), scientific american, 64--05

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$20 On application for Re-issue $30 On application for extension of Patent $10 On granting the Extension. $50 On filing application for Design (three and a half years). .$10 On filing application for Design (seven years), scientific american, 64--05

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