Patent US2940463A successfully refreshed from Google Patents.
US2940463A
Expired / Lapsed
US
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Hydraulic regulator
Assignee: Orenda Engines Ltd
•
Filing: 1956-06-13
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Granted: 1960-06-14
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Expires: 1976-06-13
Abstract
No abstract record available.
Inventors
- 👤 Balfour Ronald Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:35
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/06; G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; G05D16/101; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2607; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7794
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US868219A
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US1725539A
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US1903338A
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US2103299A
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US2188463A
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US2421133A
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US2447067A
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US2518852A
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US2750952A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |