US2427422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water purifying apparatus having inlet water spray nozzles and means to direct steam into the paths of the water
Assignee: Worthington Pump and Machinery Corp
•
Filing: 1945-02-23
•
Granted: 1947-09-16
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Expires: 1965-02-23
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Sebald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:04
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/02; C02F5/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1668807A
Cited
US2047292A
Cited
US2160832A
Cited
US2204062A
Cited
US2241873A
Cited
US2210151A
Cited
US2379753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-15 | 1951-03-17 | 1951-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-15 | 1955-03-17 | 1955-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-15 | 1959-03-17 | 1959-09-16 | $7700.00 | Window Closed / Lapsed |