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US2197357A Expired / Lapsed US ⏱️ 0.0 years remaining

Condensation products of amino-triazine, aldehyde, and alcoholic group-containing compounds and processes of making same

Assignee: Ciba Products Corp
•
Filing: 1937-10-14
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Granted: 1940-04-16
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Expires: 1957-10-14
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Abstract

No abstract record available.

Inventors

  • 👤 Widmer Gustave
  • 👤 Fisch Willi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 20:36
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/40; C08G12/42; C08G12/424; C08G12/425

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) 1943-04-16 1943-10-16 1944-04-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1947-04-16 1947-10-16 1948-04-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1951-04-16 1951-10-16 1952-04-16 $7700.00 Window Closed / Lapsed

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