US2562735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid treating apparatus
Assignee: —
•
Filing: —
•
Granted: 1951-07-31
•
Expires: 1968-07-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:21
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/28; C02F1/281; C02F1/001; C02F1/003; C02F1/283; C02F2201/00; C02F2201/002; C02F2201/006; C02F2307/00; C02F2307/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |