Patent US890470A successfully refreshed from Google Patents.
US890470A
Expired / Lapsed
US
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Dredging apparatus.
Assignee: Individual
•
Filing: 1908-01-13
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Granted: 1908-06-09
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Expires: 1928-01-13
Abstract
No abstract record available.
Inventors
- 👤 Harrison Southwick Taft
- 👤 Uldrick Thompson Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:28
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/315; B41J2/32; B41J2/325; G; G01; G01D; G01D15/00; G01D15/14; Y; Y10; Y10S; Y10S37/00; Y10S37/906
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) | 1911-06-09 | 1911-12-09 | 1912-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-06-09 | 1915-12-09 | 1916-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-06-09 | 1919-12-09 | 1920-06-09 | $7700.00 | Window Closed / Lapsed |