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US3577416A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for the selective chlorination of alkylmercapto-substituted s-triazines

Assignee: Evonik Operations GmbH
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Filing: 1969-02-13
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Granted: 1971-05-04
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Expires: 1989-02-13
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Abstract

Abstract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

Inventors

  • 👤 Werner Schwarze
  • 👤 Gunter Giesselmann
  • 👤 Wolfgang Weigert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 13:07
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/28; C07D251/38

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-05-03 1974-11-02 1975-05-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-05-03 1978-11-02 1979-05-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-05-03 1982-11-02 1983-05-04 $7700.00 Window Closed / Lapsed

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