Patent US77A successfully refreshed from Google Patents.
US77A
Expired / Lapsed
US
⏱️ 0.0 years remaining
James hamilton
Assignee: —
•
Filing: —
•
Granted: 1836-11-10
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Expires: 1853-11-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:55
CPC Classifications
B; B27; B27L; B27L5/00; B27L5/06
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) | 1839-11-10 | 1840-05-11 | 1840-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1843-11-10 | 1844-05-11 | 1844-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1847-11-10 | 1848-05-11 | 1848-11-10 | $7700.00 | Window Closed / Lapsed |