Patent US3291315A successfully refreshed from Google Patents.
US3291315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Settling tank
Assignee: Individual
•
Filing: 1964-05-19
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Granted: 1966-12-13
•
Expires: 1984-05-19
Abstract
No abstract record available.
Inventors
- 👤 Rossi Angelo Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:09
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0039; B01D21/0042; B01D21/02; B01D21/24; B01D21/2405; B01D21/2411; B01D21/2427; B01D21/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE47217C
Cited
US1219796A
Cited
US2127314A
Cited
US2450070A
Cited
US2564963A
Cited
AT181575B
Cited
US2796175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |