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US3535526A Expired / Lapsed US ⏱️ 0.0 years remaining

Integrated photosensitive switching circuit using double emitter transistors

Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1968-03-01
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Granted: 1970-10-20
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Expires: 1988-03-01
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Abstract

No abstract record available.

Inventors

  • 👤 Michel Henry
  • 👤 Jacques Lacour

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 15:47
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/78; H03K17/795; H03K17/7955; H10; H10D; H10D99/00; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/197; H10F99/00

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2702838A Cited
US2867733A Cited
US2913704A Cited
US3191040A Cited
US3248552A Cited
US3304431A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1973-10-19 1974-04-20 1974-10-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-10-19 1978-04-20 1978-10-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-10-19 1982-04-20 1982-10-20 $7700.00 Window Closed / Lapsed

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