Patent US2982501A successfully refreshed from Google Patents.
US2982501A
Expired / Lapsed
US
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Aircraft
Assignee: Rolls Royce PLC
•
Filing: 1956-08-31
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Granted: 1961-05-02
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Expires: 1976-08-31
Abstract
No abstract record available.
Inventors
- 👤 Griffith Alan Arnold
- 👤 Eyre Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:47
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0041; B64C29/0058
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2142997A
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US2156252A
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US2263365A
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US2275771A
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US2406588A
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US2497153A
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US2526941A
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US2619302A
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US2759686A
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US2715001A
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US2823880A
Cited
US2838928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |