US2708520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Settling tank
Assignee: Individual
•
Filing: 1951-10-03
•
Granted: 1955-05-17
•
Expires: 1971-10-03
Abstract
No abstract record available.
Inventors
- 👤 James L Dallas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:03
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/10; B01D21/12; B01D21/0039; B01D21/0042; B01D21/14; B01D21/18; B01D21/183; B01D21/24; B01D21/2405; B01D21/2427; B01D21/2433; B01D21/2438; B01D21/245
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US876923A
Cited
US2160838A
Cited
US2185785A
Cited
US2169442A
Cited
US2254176A
Cited
US2264912A
Cited
US2355640A
Cited
US2566988A
Cited
US2509933A
Cited
US2635758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-16 | 1958-11-15 | 1959-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-16 | 1962-11-15 | 1963-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-16 | 1966-11-15 | 1967-05-17 | $7700.00 | Window Closed / Lapsed |