Patent US2424773A successfully refreshed from Google Patents.
US2679858A
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Adjustable nonchattering relief valve
Assignee: Individual
•
Filing: 1950-10-10
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Granted: 1954-06-01
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Expires: 1970-10-10
Abstract
No abstract record available.
Inventors
- 👤 Manning H Kemp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:47
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/0433; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7062; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7939
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US446757A
Cited
US1743350A
Cited
AU1856829A
Cited
US2017668A
Cited
US2209856A
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US2415258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |