Patent US3282436A successfully refreshed from Google Patents.
US3282436A
Expired / Lapsed
US
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Combined by-pass and/or distribution sediment-thickening unit for sewage purificationplants
Assignee: Industrikemiska AB
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Filing: 1963-06-17
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Granted: 1966-11-01
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Malm Lars Gosta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:31
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/006
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |