Patent US2103390A successfully refreshed from Google Patents.
US3485749A
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US
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Sewage treatment process and apparatus
Assignee: Individual
•
Filing: 1965-08-30
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Granted: 1969-12-23
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Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 Bertram B Reilly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:41
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1205; C02F3/1215; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB132581A
Cited
GB703182A
Cited
US1139024A
Cited
US1717764A
Cited
US2854146A
Cited
US3047492A
Cited
US3135686A
Cited
US3366242A
Cited
US3347784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |