Patent US29235A successfully refreshed from Google Patents.
US29235A
Expired / Lapsed
US
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Mode of fastening nuts on railroad-bolts
Assignee: —
•
Filing: —
•
Granted: 1860-07-24
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Expires: 1877-07-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:13
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/02; F16B39/10; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/974; Y10S411/984; Y10S411/988
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) | 1863-07-24 | 1864-01-23 | 1864-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1867-07-24 | 1868-01-23 | 1868-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1871-07-24 | 1872-01-23 | 1872-07-24 | $7700.00 | Window Closed / Lapsed |