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US1851914A Expired / Lapsed US ⏱️ 0.0 years remaining

Manufacture and use of new wetting preparations

Assignee: FIRM CHEMICAL WORKS FORMERLY S
•
Filing: 1930-06-03
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Granted: 1932-03-29
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Expires: 1950-06-03
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Abstract

No abstract record available.

Inventors

  • 👤 Lier Heinrich

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 14:37
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/325; D06M13/335; D06M11/00; D06M11/32; D06M11/36; D06M11/38; D06M11/50; D06M13/02; D06M13/10; D06M13/12; D06M13/127; D06M13/137; D06M13/144; D06M13/152; D06M13/165; D06M13/244; D06M13/248; D06M13/256; D06M13/332; D06M13/338; D06M13/35; D06M13/402; D06M13/405; D06M13/46; D06M13/463; D06M15/00; D06M15/01; D06M15/17; D06M15/19; D06M15/37; D06M15/53; Y; Y10; Y10S; Y10S162/00; Y10S162/03; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/05; Y10S516/06; Y10S516/07

Claims Analysis

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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) 1935-03-29 1935-09-28 1936-03-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1939-03-29 1939-09-28 1940-03-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1943-03-29 1943-09-28 1944-03-29 $7700.00 Window Closed / Lapsed

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