US2604076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multistroke fluid operated power actuator
Assignee: Dunlop Rubber Co Ltd
•
Filing: 1947-08-26
•
Granted: 1952-07-22
•
Expires: 1967-08-26
Abstract
No abstract record available.
Inventors
- 👤 Trevaskis Henry William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:12
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/08; F15B11/12; F15B11/121; F15B11/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US827496A
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US988422A
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US1491797A
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US1592918A
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AT118919B
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US1775892A
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US2198129A
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GB529885A
Cited
CH219471A
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US2436908A
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US2421194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |