US80998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in bolt-holders
Assignee: —
•
Filing: —
•
Granted: 1868-08-11
•
Expires: 1885-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:06
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/0085; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53552; Y10T29/53561; Y10T29/5357; Y10T29/53574
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) | 1871-08-11 | 1872-02-10 | 1872-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1875-08-11 | 1876-02-10 | 1876-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1879-08-11 | 1880-02-10 | 1880-08-11 | $7700.00 | Window Closed / Lapsed |