Patent US629377A successfully refreshed from Google Patents.
US629377A
Expired / Lapsed
US
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Water-purifying apparatus.
Assignee: LELAND FILTER Co
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Filing: 1899-02-08
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Granted: 1899-07-25
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Expires: 1919-02-08
Abstract
No abstract record available.
Inventors
- 👤 Edwin A Leland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:16
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/02
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) | 1902-07-25 | 1903-01-24 | 1903-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1906-07-25 | 1907-01-24 | 1907-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1910-07-25 | 1911-01-24 | 1911-07-26 | $7700.00 | Window Closed / Lapsed |