Patent US2645243A successfully refreshed from Google Patents.
US2645243A
Expired / Lapsed
US
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Relief valve manifold
Assignee: Individual
•
Filing: 1948-05-17
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Granted: 1953-07-14
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Expires: 1968-05-17
Abstract
No abstract record available.
Inventors
- 👤 Lon D Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:29
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/34; F16K2200/00; F16K2200/30; F16K2200/305; F16K2200/3053; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7847; Y10T137/7849; Y10T137/8593; Y10T137/87265; Y10T137/87555; Y10T137/877; Y10T137/87708; Y10T137/87724
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US279562A
Cited
US833093A
Cited
US1738974A
Cited
US1842066A
Cited
FR759867A
Cited
GB409169A
Cited
US2231942A
Cited
US2381484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |