US31040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in aquaria
Assignee: —
•
Filing: —
•
Granted: 1861-01-01
•
Expires: 1878-01-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:51
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/003
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) | 1864-01-01 | 1864-07-02 | 1865-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1868-01-01 | 1868-07-02 | 1869-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1872-01-01 | 1872-07-02 | 1873-01-01 | $7700.00 | Window Closed / Lapsed |