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US1039520A Expired / Lapsed US ⏱️ 0.0 years remaining

Regulating-nozzle for incandescent gas-lamps.

Assignee: Individual
•
Filing: 1911-11-14
•
Granted: 1912-09-24
•
Expires: 1931-11-14
📄 Original PDF 🌐 Google Patents

Abstract

No abstract record available.

Inventors

  • 👤 Max Graetz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 15:01
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/30; B05B1/3033; B05B1/304; B05B1/3046; Y; Y10; Y10S; Y10S137/00; Y10S137/903; Y10S251/00; Y10S251/903

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) 1915-09-24 1916-03-25 1916-09-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1919-09-24 1920-03-25 1920-09-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1923-09-24 1924-03-25 1924-09-24 $7700.00 Window Closed / Lapsed

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