Patent US719406A successfully refreshed from Google Patents.
US719406A
Expired / Lapsed
US
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Drainage conveyer-trough.
Assignee: LINK BELT ENGINEERING Co
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Filing: 1902-12-02
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Granted: 1903-01-27
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Expires: 1922-12-02
Abstract
No abstract record available.
Inventors
- 👤 Frank G Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:03
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; B; B01; B01D; B01D21/00; B01D21/02
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) | 1906-01-26 | 1906-07-28 | 1907-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-01-26 | 1910-07-28 | 1911-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-01-26 | 1914-07-28 | 1915-01-27 | $7700.00 | Window Closed / Lapsed |