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US45904A
Expired / Lapsed
US
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Improvement in oyster-dredges
Assignee: —
•
Filing: —
•
Granted: 1865-01-17
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Expires: 1882-01-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:12
CPC Classifications
A; A01; A01K; A01K80/00
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) | 1868-01-17 | 1868-07-18 | 1869-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1872-01-17 | 1872-07-18 | 1873-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1876-01-17 | 1876-07-18 | 1877-01-17 | $7700.00 | Window Closed / Lapsed |