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US944988A Expired / Lapsed US ⏱️ 0.0 years remaining

Time mechanism for operating gas and other valves.

Assignee: PENNSYLVANIA GLOBE GAS LIGHT Co
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Filing: 1907-08-01
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Granted: 1909-12-28
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Expires: 1927-08-01
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Abstract

No abstract record available.

Inventors

  • 👤 Victor H Slinack

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 19:12
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/48; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86397; Y10T137/86405; Y10T137/86421; Y10T137/86437

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) 1912-12-27 1913-06-28 1913-12-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1916-12-27 1917-06-28 1917-12-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1920-12-27 1921-06-28 1921-12-28 $7700.00 Window Closed / Lapsed

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