US2614503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicylinder rotary abutment hydraulic power converter
Assignee: OLIVER IRON AND STEEL Corp
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Filing: 1949-10-25
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Granted: 1952-10-21
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Expires: 1969-10-25
Abstract
No abstract record available.
Inventors
- 👤 Berry Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:58
CPC Classifications
F; F16; F16H; F16H39/00; F16H39/02; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/8593; Y10T137/86493; Y10T137/86879; Y10T137/86895; Y10T137/87096
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE185805C
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DE617955C
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US655198A
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US935079A
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US1485414A
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GB420880A
Cited
GB543555A
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US2344879A
Cited
US2483705A
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US2497373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |