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US2254858A Expired / Lapsed US ⏱️ 0.0 years remaining

Clockwork apparatus and new portable gas or vapor watch

Assignee: ED Jaeger SA
•
Filing: 1937-10-29
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Granted: 1941-09-02
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Expires: 1957-10-29
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Abstract

No abstract record available.

Inventors

  • 👤 Reutter Jean Leon

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 10:51
CPC Classifications
G; G04; G04B; G04B37/00; G04B37/14; G04B37/1486; A; A44; A44C; A44C5/00; A44C5/02

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) 1944-09-01 1945-03-03 1945-09-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1948-09-01 1949-03-03 1949-09-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1952-09-01 1953-03-03 1953-09-02 $7700.00 Window Closed / Lapsed

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