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US2194037A Expired / Lapsed US ⏱️ 0.0 years remaining

Aerating device for liquids

Assignee: SETH L WAY
•
Filing: 1938-03-18
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Granted: 1940-03-19
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Expires: 1958-03-18
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Abstract

No abstract record available.

Inventors

  • 👤 Charles H Thuma

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 13:36
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; A01K63/042; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/232; B01F23/2321; B01F23/23211; B01F23/233; B01F23/234; B01F23/2366; B01F23/2368; B01F23/40; B01F23/45; B01F23/454; B01F25/00; B01F25/60; B01F27/00; B01F27/80; B01F33/00; B01F33/50; B01F33/503; Y; Y10; Y10S; Y10S261/00; Y10S261/71

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) 1943-03-19 1943-09-18 1944-03-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1947-03-19 1947-09-18 1948-03-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1951-03-19 1951-09-18 1952-03-19 $7700.00 Window Closed / Lapsed

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