Patent US2628632A successfully refreshed from Google Patents.
US2628632A
Expired / Lapsed
US
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Safety valve
Assignee: Manning Maxwell and Moore Inc
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Filing: 1946-04-09
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Granted: 1953-02-17
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Expires: 1966-04-09
Abstract
No abstract record available.
Inventors
- 👤 Russell W Dayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:01
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/0466; F16K17/0433; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7738
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US116084A
Cited
US1697516A
Cited
GB189511694A
Cited
US820154A
Cited
US1508102A
Cited
US1514233A
Cited
US2124374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |