US2487685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary oscillating vane pump
Assignee: Wright Aeronautical Corp
•
Filing: 1945-03-20
•
Granted: 1949-11-08
•
Expires: 1965-03-20
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:03
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/30; F04C2/40; F04C2/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE17613C
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DE6122C
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US1010388A
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GB106521A
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FR564411A
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US1657096A
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US1515961A
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US1601397A
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FR606765A
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US1669779A
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GB294653A
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US1743539A
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US1818430A
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US1877250A
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US2004563A
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US2033719A
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US2137708A
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US2323926A
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US2338112A
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US2247429A
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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) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |