US910327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water softening and purifying apparatus.
Assignee: Individual
•
Filing: 1904-06-28
•
Granted: 1909-01-19
•
Expires: 1924-06-28
Abstract
No abstract record available.
Inventors
- 👤 Harry Herbert Sutro
- 👤 Levis Miller Booth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:23
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/30; C02F1/32; C02F1/325
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) | 1912-01-19 | 1912-07-20 | 1913-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-01-19 | 1916-07-20 | 1917-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-01-19 | 1920-07-20 | 1921-01-19 | $7700.00 | Window Closed / Lapsed |