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US2892964A Expired / Lapsed US ⏱️ 0.0 years remaining

Ionic discharge devices

Assignee: CENTRE D'ETUDES ET DE DEVELOPMENT DE L'ELECTRONIQUE
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Filing: 1957-10-28
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Granted: 1959-06-30
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Expires: 1977-10-28
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Abstract

No abstract record available.

Inventors

  • 👤 Hanlet Jacques Marie Noel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 12:49
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/55; G; G21; G21H; G21H1/00; G21H1/02; H01; H01J; H01J17/00; H01J17/02; H01J17/30; H01J17/32

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1145735A Cited
US1748386A Cited
US2552050A Cited
US2569924A Cited
US2616986A Cited
US2669609A Cited
US2672567A Cited
US2754428A Cited
US2789240A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-06-29 1962-12-29 1963-06-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-06-29 1966-12-29 1967-06-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-06-29 1970-12-29 1971-06-30 $7700.00 Window Closed / Lapsed

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