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US2684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Siviutx-maci-iine
Assignee: —
•
Filing: —
•
Granted: 1842-06-22
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Expires: 1859-06-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:23
CPC Classifications
B; B07; B07B; B07B7/00; B07B7/08
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) | 1845-06-21 | 1845-12-21 | 1846-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1849-06-21 | 1849-12-21 | 1850-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1853-06-21 | 1853-12-21 | 1854-06-22 | $7700.00 | Window Closed / Lapsed |