Patent US2900084A successfully refreshed from Google Patents.
US2900084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outlet trap for septic tanks
Assignee: Individual
•
Filing: 1956-07-18
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Granted: 1959-08-18
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Expires: 1976-07-18
Abstract
No abstract record available.
Inventors
- 👤 Robert L Zabel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:33
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/28; B; B01; B01D; B01D29/00; B01D29/01; B01D29/05; B01D29/07; B01D29/071; B01D29/44; B01D29/46; B01D35/00; B01D35/02; B01D35/027; B01D35/0273; C02F1/00; C02F1/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US65751A
Cited
US228091A
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US977860A
Cited
US1111470A
Cited
US1582915A
Cited
US2256626A
Cited
US2356953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |