Patent US3317047A successfully refreshed from Google Patents.
US3317047A
Expired / Lapsed
US
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Sewage disposal system
Assignee: Individual
•
Filing: 1964-11-05
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Granted: 1967-05-02
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Expires: 1984-11-05
Abstract
No abstract record available.
Inventors
- 👤 Hansen Roy Dahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:24
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/76; C02F1/38; C02F2103/00; C02F2103/005; C02F2103/008
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
IN A SEWAGE TREATING SYSTEM, MEANS FOR SEPARATING THE SEWAGE INTO ITS SOLID AND LIQUID COMPONENTS COMPRISING: A CHAMBER FOR RECEIVING THE SOLID-LIQUID COMBINATION; A ROTATABLE ANNULAR SCREEN MOUNTED WITHIN THE CHAMBER TO DEFINE AN INNER AND AN OUTER COMPARTMENT IN THE CHAMBER; INLET MEANS ON THE OUTER COMPARTMENT FOR THE ENTRANCE OF THE LIQUID-SOLID COMBINATION; OUTLET MEANS ON THE OUTER COMPARTMENT FOR DISCHARGE OF SOLIDS; OUTLET MEANS ON SAID INNER COMPARTMENT FOR LIQUIDS; VALVE MEANS ASSOCIATED WITH THE OUTER COMPARTMENT PERMITTING DISCHARGE OF SOLIDS FROM SAID OUTER COMPARTMENT AT PRESELECTED TIMES; MEANS FOR INTERMITTENTLY ROTATING SAID AN-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |