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Patent US294118A successfully refreshed from Google Patents.
US294118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for producing circulation in steam-boilers
Assignee: —
•
Filing: —
•
Granted: 1884-02-26
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Expires: 1901-02-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:17
CPC Classifications
B; B61; B61C; B61C8/00
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) | 1887-02-25 | 1887-08-27 | 1888-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1891-02-25 | 1891-08-27 | 1892-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1895-02-25 | 1895-08-27 | 1896-02-26 | $7700.00 | Window Closed / Lapsed |