Patent US1617014A successfully refreshed from Google Patents.
US1617014A
Expired / Lapsed
US
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Process for disposal of sewage
Assignee: CELITE Co
•
Filing: 1922-02-07
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Granted: 1927-02-08
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Expires: 1942-02-07
Abstract
No abstract record available.
Inventors
- 👤 Charles P Derleth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:03
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/08; C02F3/085; C02F11/00; C02F11/10; C02F11/12; C02F11/13; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y02W10/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-02-07 | 1930-08-09 | 1931-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-02-07 | 1934-08-09 | 1935-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-02-07 | 1938-08-09 | 1939-02-08 | $7700.00 | Window Closed / Lapsed |