US1825631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water softening
Assignee: UNIFLOW Manufacturing Co
•
Filing: 1926-12-09
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Granted: 1931-09-29
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Expires: 1946-12-09
Abstract
No abstract record available.
Inventors
- 👤 Anthony G Horvath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:44
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/02; B01D61/025; B01D61/08; B01D61/081
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) | 1934-09-28 | 1935-03-30 | 1935-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-09-28 | 1939-03-30 | 1939-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-09-28 | 1943-03-30 | 1943-09-29 | $7700.00 | Window Closed / Lapsed |