US2820600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft control surface assembly and actuating mechanism
Assignee: Northrop Grumman Corp
•
Filing: 1954-05-24
•
Granted: 1958-01-21
•
Expires: 1974-05-24
Abstract
No abstract record available.
Inventors
- 👤 Maxine S Brunner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:12
CPC Classifications
B; B64; B64C; B64C13/00; Y; Y02; Y02T; Y02T50/00; Y02T50/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR582680A
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US2502573A
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GB189413237A
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US1038800A
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US1540870A
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US1997444A
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US2316235A
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US2286516A
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US2315270A
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US2394405A
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US2491812A
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US2504096A
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US2698526A
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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) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |