US2747550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valves for hydraulic tippinghoists for vehicles
Assignee: EDWARDS BROTHERS (TIPPERS) Ltd
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Filing: 1953-04-24
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Granted: 1956-05-29
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Expires: 1973-04-24
Abstract
No abstract record available.
Inventors
- 👤 Cosgrove James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:14
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/1423; F15B15/1433; B; B60; B60P; B60P1/00; B60P1/04; B60P1/16; B60P1/162; F15B15/149; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87169; Y10T137/87177
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |