US2824713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airplane weight responsive wheel brake apparatus
Assignee: Westinghouse Air Brake Co
•
Filing: 1953-03-27
•
Granted: 1958-02-25
•
Expires: 1973-03-27
Abstract
No abstract record available.
Inventors
- 👤 Cecil S Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:54
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/32; B64C25/42; B64C25/44; B64C25/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1457157A
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US1664510A
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US1630810A
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US1763405A
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US1887583A
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US2498438A
Cited
US2490641A
Cited
US2491551A
Cited
US2574426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |