US2511686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank for aqueous electrolysis
Assignee: Compagnie de Produits Chimiques et Electrometallurgiques Alais Froges et Camargue
•
Filing: 1948-04-30
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Granted: 1950-06-13
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Expires: 1968-04-30
Abstract
No abstract record available.
Inventors
- 👤 Andre Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:08
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US507374A
Cited
US1359716A
Cited
GB189613690A
Cited
US674927A
Cited
GB190200118A
Cited
US1053266A
Cited
GB121460A
Cited
GB444709A
Cited
US2177453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |