Patent US2456524A successfully refreshed from Google Patents.
US2456524A
Expired / Lapsed
US
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Apparatus suitable for use in the treatment of water containing chlorides dissolved therein
Assignee: HOWARD D MEINCKE SR
•
Filing: 1944-05-12
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Granted: 1948-12-14
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Expires: 1964-05-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Howard D Meincke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:18
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/001; C02F1/002; C02F1/52; C02F1/5236; C02F2103/00; C02F2103/08; C02F2307/00; C02F2307/02
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |