US2608057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine nozzle box
Assignee: AV Roe Canada Ltd
•
Filing: 1949-12-24
•
Granted: 1952-08-26
•
Expires: 1969-12-24
Abstract
No abstract record available.
Inventors
- 👤 Boyd Winnett
- 👤 Purvis Joseph Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:37
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/42; F23R3/60; F01; F01D; F01D9/00; F01D9/02; F01D9/023; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2414551A
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US2445661A
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US2479573A
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GB615915A
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US2494821A
Cited
US2510645A
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US2564218A
Cited
US2548886A
Cited
US2547619A
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US2565843A
Cited
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 |