US2886951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the utilization of the energy of waves
Assignee: Electricite de France SA
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Filing: 1953-04-09
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Granted: 1959-05-19
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Expires: 1973-04-09
Abstract
No abstract record available.
Inventors
- 👤 Valembois Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:14
CPC Classifications
F; F03; F03B; F03B13/00; F03B13/12; F03B13/14; F03B13/141; F03B13/144; F03B13/147; Y; Y02; Y02E; Y02E10/00; Y02E10/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |