US2564543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lime feeding processes and apparatus suitable for water-softening plants
Assignee: Individual
•
Filing: 1946-01-25
•
Granted: 1951-08-14
•
Expires: 1966-01-25
Abstract
No abstract record available.
Inventors
- 👤 Moore Richard Pierpont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:11
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/529
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US495313A
Cited
US748308A
Cited
US753880A
Cited
US846845A
Cited
FR360397A
Cited
US996313A
Cited
US973992A
Cited
US1048833A
Cited
GB191010394A
Cited
US1326553A
Cited
US1866031A
Cited
US1716205A
Cited
GB399633A
Cited
US2080872A
Cited
US2362606A
Cited
US2367228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |