US2608159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic apparatus
Assignee: Denison Engineering Co
•
Filing: 1945-02-02
•
Granted: 1952-08-26
•
Expires: 1965-02-02
Abstract
No abstract record available.
Inventors
- 👤 Ellis H Born
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:26
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/0032; F01B3/0044; F01B3/0064; F01B3/0067; F01B3/0082; F01B3/0085; F01B3/0088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1632304A
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GB235452A
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US1772828A
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US1710567A
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GB311938A
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US2016082A
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US1945391A
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US1952994A
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US2081477A
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US2168658A
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US2299234A
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US2300009A
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US2331694A
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GB597476A
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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) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |