US2746424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced valve fluid-actuated control device
Assignee: Sandvik AB
•
Filing: 1952-05-07
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Granted: 1956-05-22
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Expires: 1972-05-07
Abstract
No abstract record available.
Inventors
- 👤 Segerstad Carl Gustaf Hard Af
- 👤 Westberg Alvar Torsten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:22
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/44; Y; Y10; Y10S; Y10S33/00; Y10S33/02; Y10T; Y10T137/00; Y10T137/2278; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/8659
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US901613A
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US1169304A
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US1889269A
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FR801509A
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US2187114A
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US2303752A
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US2317383A
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US2582088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |