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US971099A Expired / Lapsed US ⏱️ 0.0 years remaining

Gas-controller.

Assignee: EQUITABLE METER Co
•
Filing: 1909-05-29
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Granted: 1910-09-27
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Expires: 1929-05-29
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Abstract

No abstract record available.

Inventors

  • 👤 Fred Elliott Youngs

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 17:46
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/08; F16K13/10; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4643; Y10T137/4666; Y10T137/7722; Y10T137/7781; Y10T137/7837; Y10T137/7904; Y10T137/7907

Claims Analysis

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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1913-09-26 1914-03-28 1914-09-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1917-09-26 1918-03-28 1918-09-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1921-09-26 1922-03-28 1922-09-27 $7700.00 Window Closed / Lapsed

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