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US878658A Expired / Lapsed US ⏱️ 0.0 years remaining

Automatic safety-valve for gas-supply pipes.

Assignee: Individual
•
Filing: 1907-06-10
•
Granted: 1908-02-11
•
Expires: 1927-06-10
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Abstract

No abstract record available.

Inventors

  • 👤 James Murray

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 05:49
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/36; F16K17/38; F16K17/383; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/1819

Claims Analysis

Total Claims: 0
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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) 1911-02-10 1911-08-12 1912-02-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1915-02-10 1915-08-12 1916-02-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1919-02-10 1919-08-12 1920-02-11 $7700.00 Window Closed / Lapsed

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