US3512152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analogue digital device
Assignee: Societe Nationale des Petroles dAquitaine SA
•
Filing: 1966-02-11
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Granted: 1970-05-12
•
Expires: 1986-02-11
Abstract
No abstract record available.
Inventors
- 👤 Chanh-Trung Huynh
- 👤 Lucien Espagno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:29
CPC Classifications
H; H03; H03M; H03M1/00; H01; H01J; H01J49/00; H01J49/02; H01J49/022; H03M1/06; H03M1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2656524A
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US2828482A
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US2960690A
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US3017093A
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US2966672A
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US3134957A
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US3091664A
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US3422422A
Cited
US3426296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |