US3428834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite electrode for magnetohydrodynamic generator
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1965-07-01
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Granted: 1969-02-18
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Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 David Yerouchalmi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:52
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/08; H02K44/10; C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/48; C04B35/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2459841A
Cited
US2460739A
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US2808530A
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US2950993A
Cited
US3171060A
Cited
US3339267A
Cited
US3274408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |