Patent US10224A successfully refreshed from Google Patents.
US10224A
Expired / Lapsed
US
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Supplemental valve to the equilibrium-pipe of the cornish engine
Assignee: —
•
Filing: —
•
Granted: 1853-11-15
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Expires: 1870-11-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:52
CPC Classifications
F; F03; F03B; F03B17/00; Y; Y02; Y02E; Y02E10/00; Y02E10/20
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) | 1856-11-14 | 1857-05-16 | 1857-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1860-11-14 | 1861-05-16 | 1861-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1864-11-14 | 1865-05-16 | 1865-11-15 | $7700.00 | Window Closed / Lapsed |