Patent US2340783A successfully refreshed from Google Patents.
Patent US1450360A successfully refreshed from Google Patents.
Patent US2362409A successfully refreshed from Google Patents.
US2362409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reagent for softening water and the flocculation of suspended solids therein
Assignee: UNIFLOC REAGENTS Ltd
•
Filing: 1940-02-20
•
Granted: 1944-11-07
•
Expires: 1960-02-20
Abstract
No abstract record available.
Inventors
- 👤 Samuel John Oswald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:05
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/02; C02F5/025; C02F1/00; C02F1/52; C02F1/5236
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1947-11-07 | 1948-05-08 | 1948-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-11-07 | 1952-05-08 | 1952-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-11-07 | 1956-05-08 | 1956-11-07 | $7700.00 | Window Closed / Lapsed |