US3490871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing hydrogen from water using an alkali metal
Assignee: Aerojet Rocketdyne Inc
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Filing: 1965-10-19
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Granted: 1970-01-20
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Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Alan R Miller
- 👤 Harold Jaffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:22
CPC Classifications
G; G21; G21D; G21D9/00; C; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/061; C01B3/063; C01B3/08; C01B3/10; Y; Y02; Y02E; Y02E30/00; Y02E60/00; Y02E60/30; Y02E60/36
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) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |