US140223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in fastenings for safety-valve cases
Assignee: —
•
Filing: —
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Granted: 1873-06-24
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Expires: 1890-06-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:37
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/06; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7062; Y10T137/7069; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7932; Y10T137/7933
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) | 1876-06-23 | 1876-12-23 | 1877-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1880-06-23 | 1880-12-23 | 1881-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1884-06-23 | 1884-12-23 | 1885-06-24 | $7700.00 | Window Closed / Lapsed |