US3374158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure electrolysis system and process for hydrogen-oxygen generation
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1964-04-01
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Granted: 1968-03-19
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Expires: 1984-04-01
Abstract
No abstract record available.
Inventors
- 👤 Albert M Lord
- 👤 Thomas H Hacha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:18
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/02; C25B1/04; C25B9/00; C25B9/05; Y; Y02; Y02E; 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) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |