Patent US3869153A successfully refreshed from Google Patents.
Patent US2956574A successfully refreshed from Google Patents.
US2956574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fusible valve
Assignee: —
•
Filing: —
•
Granted: 1960-10-18
•
Expires: 1977-10-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:43
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/36; F16K17/38; F16K17/383; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/1819; Y10T137/1834; Y10T137/5109; Y10T137/5196
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US325989A
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US606867A
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US1694242A
Cited
US679543A
Cited
US1200668A
Cited
US1284063A
Cited
US1498024A
Cited
US1825543A
Cited
US2035497A
Cited
US2128059A
Cited
US2305438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |