Patent US3273346A successfully refreshed from Google Patents.
US3273346A
Expired / Lapsed
US
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Positioning of submarine tubes
Assignee: Electricite de France SA
•
Filing: 1961-12-18
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Granted: 1966-09-20
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Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 Delaruelle Jacques
- 👤 Constantin Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:19
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/12; F16L1/16; F16L1/18; F16L1/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1703777A
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US1569764A
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US2692092A
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US2783027A
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US2910835A
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US2871665A
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FR1206378A
Cited
GB863000A
Cited
FR1230014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |