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Patent US3515513A successfully refreshed from Google Patents.
US3515513A
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Carbonation process for so2 removal
Assignee: Veolia WTS Systems USA Inc
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Filing: 1969-02-03
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Granted: 1970-06-02
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Expires: 1989-02-03
Abstract
No abstract record available.
Inventors
- 👤 Edgardo J Parsi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:38
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/48; C01B17/50; C01B17/60; B; B01; B01D; B01D53/00; B01D53/14; B01D53/1456; B01D53/1493; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y02P; Y02P20/00; Y02P20/151
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2768945A
Cited
US3135673A
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US3222267A
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US3165460A
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US3433726A
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US3344050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |