Patent US2831490A successfully refreshed from Google Patents.
US2831490A
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Outlet selector valve for tiltable and invertible tank
Assignee: Orenda Engines Ltd
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Filing: 1955-10-07
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Granted: 1958-04-22
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Expires: 1975-10-07
Abstract
No abstract record available.
Inventors
- 👤 Simcock William Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:03
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/36; F16K17/366; B; B64; B64D; B64D37/00; B64D37/02; B64D37/14; B64D37/20; B64D37/22; Y; Y10; Y10T; Y10T137/00; Y10T137/0753
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2239098A
Cited
US2324464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |