US2433884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewage treating apparatus comprising a receptacle having a rotatable support partially submerged in liquid therein and having a matrix of oxidizing bacteria thereon
Assignee: Solomon R. Guggenheim Museum
•
Filing: 1944-08-22
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Granted: 1948-01-06
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Expires: 1964-08-22
Abstract
No abstract record available.
Inventors
- 👤 John G Bevan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:30
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/08; C02F3/082; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 0
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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) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |