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US945151A Expired / Lapsed US ⏱️ 0.0 years remaining

Detector check-valve.

Assignee: Individual
•
Filing: 1901-08-19
•
Granted: 1910-01-04
•
Expires: 1921-08-19
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Abstract

No abstract record available.

Inventors

  • 👤 Albert Blauvelt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 12:14
CPC Classifications
F; F16; F16K; F16K29/00; F16K15/00; F16K15/02; F16K15/03; F16K15/033; F16K15/18; F16K15/182; F16K15/1821; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/428; Y10T137/4322; Y10T137/7722; Y10T137/7837; Y10T137/7876; Y10T137/7898; Y10T137/7901

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) 1913-01-03 1913-07-05 1914-01-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1917-01-03 1917-07-05 1918-01-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1921-01-03 1921-07-05 1922-01-04 $7700.00 Window Closed / Lapsed

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