US210476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in methods of connecting sputs to boilers
Assignee: —
•
Filing: —
•
Granted: 1878-12-03
•
Expires: 1895-12-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:39
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/0008; B23K1/0012; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49387
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) | 1881-12-02 | 1882-06-03 | 1882-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1885-12-02 | 1886-06-03 | 1886-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1889-12-02 | 1890-06-03 | 1890-12-03 | $7700.00 | Window Closed / Lapsed |