US3510265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wastewater treatment apparatus incorporating activated carbon bed and regenerator therefor
Assignee: General Electric Co
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Filing: 1969-07-01
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Granted: 1970-05-05
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Expires: 1989-07-01
Abstract
No abstract record available.
Inventors
- 👤 Masayuki Kawahata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:27
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/78; B; B01; B01J; B01J20/00; B01J20/02; B01J20/20; B01J20/30; B01J20/34; B01J20/3416; B01J20/3441; B01J20/345; B01J20/3458; C02F1/28; C02F1/283; C02F1/48; B01J2220/00; B01J2220/50; B01J2220/56; B01J2220/58
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) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |