US2517524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boundary layer control
Assignee: Goodyear Aircraft Corp
•
Filing: 1945-02-10
•
Granted: 1950-08-01
•
Expires: 1965-02-10
Abstract
No abstract record available.
Inventors
- 👤 Derwood A Beck
- 👤 Edwyn A Eddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:31
CPC Classifications
B; B64; B64C; B64C21/00; B64C21/02; B64C21/06; B64C2230/00; B64C2230/04; B64C2230/06; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB209435A
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GB390363A
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US2024274A
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US2041790A
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GB484405A
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GB504747A
Cited
US2396911A
Cited
US2340396A
Cited
US2401941A
Cited
FR886889A
Cited
US2351750A
Cited
US2404954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |