Patent DE818246C successfully refreshed from Google Patents.
US731346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-purifier.
Assignee: Individual
•
Filing: 1902-07-23
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Granted: 1903-06-16
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Expires: 1922-07-23
Abstract
No abstract record available.
Inventors
- 👤 Eloi Delmouly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:37
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/132; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2541; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86638; Y10T137/86646; Y10T137/8667; Y10T137/86718; Y10T137/86743; Y10T137/86751
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) | 1906-06-15 | 1906-12-15 | 1907-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-06-15 | 1910-12-15 | 1911-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-06-15 | 1914-12-15 | 1915-06-16 | $7700.00 | Window Closed / Lapsed |