US2560210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine pressure control mechanism having housing containing an evacuated bellows and vented bellows
Assignee: Wright Aeronautical Corp
•
Filing: 1944-09-07
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Granted: 1951-07-10
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Expires: 1964-09-07
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Browne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:20
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/04; F02B37/12; F02B37/18; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1310683A
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US1346563A
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US1557793A
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US1631262A
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US2216699A
Cited
US2403398A
Cited
US2283175A
Cited
US2383198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |