Patent US715031A successfully refreshed from Google Patents.
US715031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-purifier.
Assignee: Individual
•
Filing: 1902-03-08
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Granted: 1902-12-02
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Expires: 1922-03-08
Abstract
No abstract record available.
Inventors
- 👤 George M Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:35
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/1306; G05D23/1313; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514
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) | 1905-12-01 | 1906-06-02 | 1906-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-12-01 | 1910-06-02 | 1910-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-12-01 | 1914-06-02 | 1914-12-02 | $7700.00 | Window Closed / Lapsed |