US68478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in escape-valve hose-coupling
Assignee: —
•
Filing: —
•
Granted: 1867-09-03
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Expires: 1884-09-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:05
CPC Classifications
F; F16; F16K; F16K3/00; E; E02; E02B; E02B13/00; E02B13/02
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) | 1870-09-02 | 1871-03-04 | 1871-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1874-09-02 | 1875-03-04 | 1875-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1878-09-02 | 1879-03-04 | 1879-09-03 | $7700.00 | Window Closed / Lapsed |