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
Abstract
No abstract record available.
Inventors
- 👤 Michel Henry
- 👤 Jacques Lacour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:36
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 |