US3488070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular reaction vessel
Assignee: Societe Nationale des Petroles dAquitaine SA
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Filing: 1968-02-13
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Granted: 1970-01-06
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Expires: 1988-02-13
Abstract
No abstract record available.
Inventors
- 👤 Pierre Amiot
- 👤 Francois Sterna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:40
CPC Classifications
B; B21; B21K; B21K21/00; B01; B01J; B01J3/00; B01J3/04; B01J3/042; F; F16; F16L; F16L23/00; F16L23/02; F16L23/024; F16B; F16B2200/00; F16B2200/50; F16B2200/503; F16B2200/506
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1258166A
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US1404787A
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US2374574A
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US2449052A
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US2568414A
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GB718302A
Cited
US2838073A
Cited
US3118693A
Cited
US3317221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |