Patent US2354146A successfully refreshed from Google Patents.
US2354146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Softening of water and the flocculation of suspended solids in aqueous liquids
Assignee: UNIFLOC REAGENTS Ltd
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Filing: 1941-02-28
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Granted: 1944-07-18
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Expires: 1961-02-28
Abstract
No abstract record available.
Inventors
- 👤 Samuel John Oswald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:25
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/02; C02F1/00; C02F1/52; C02F1/5236; C02F1/5245; C02F1/54; C02F1/66; C02F2209/00; C02F2209/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-07-18 | 1948-01-17 | 1948-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-07-18 | 1952-01-17 | 1952-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-07-18 | 1956-01-17 | 1956-07-18 | $7700.00 | Window Closed / Lapsed |