Patent US674142A successfully refreshed from Google Patents.
US674142A
Expired / Lapsed
US
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Apparatus for purifying water.
Assignee: Individual
•
Filing: 1899-03-10
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Granted: 1901-05-14
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Expires: 1919-03-10
Abstract
No abstract record available.
Inventors
- 👤 Louis Eduard Otto De Visser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:09
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
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) | 1904-05-13 | 1904-11-12 | 1905-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-05-13 | 1908-11-12 | 1909-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-05-13 | 1912-11-12 | 1913-05-14 | $7700.00 | Window Closed / Lapsed |