Patent US3489670A successfully refreshed from Google Patents.
US3489670A
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Process for gas purification
Assignee: General Electric Co
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Filing: 1964-07-29
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Granted: 1970-01-13
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Expires: 1984-07-29
Abstract
No abstract record available.
Inventors
- 👤 Henri J R Maget
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:42
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/06; B; B03; B03C; B03C9/00; C; C25; C25B; C25B1/00; C25B1/01; C25B1/02; C25B1/04; H01M8/0662; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/36; Y02E60/50; Y02P; Y02P20/00; Y02P20/10; Y02P20/129
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3103473A
Cited
GB303027A
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US2384463A
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US3085053A
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US3124520A
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US3134697A
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US3220937A
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US3180813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |