Patent BE522121A successfully refreshed from Google Patents.
US8231A
Expired / Lapsed
US
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Bbick-machxkte
Assignee: —
•
Filing: —
•
Granted: 1851-07-22
•
Expires: 1868-07-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:27
CPC Classifications
B; B29; B29C; B29C31/00; B29C31/04; B29C31/08; B30; B30B; B30B11/00; B30B11/02; B30B11/12
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) | 1854-07-21 | 1855-01-20 | 1855-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1858-07-21 | 1859-01-20 | 1859-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1862-07-21 | 1863-01-20 | 1863-07-22 | $7700.00 | Window Closed / Lapsed |