US2696830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake cylinder device
Assignee: Westinghouse Air Brake Co
•
Filing: 1950-01-28
•
Granted: 1954-12-14
•
Expires: 1970-01-28
Abstract
No abstract record available.
Inventors
- 👤 Mortimer B Cameron
- 👤 Temple Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:49
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/08; B60T8/00; B60T8/18; B60T8/1893; B61; B61H; B61H15/00; B61H15/0092; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US396858A
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US2511844A
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US726155A
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US747772A
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US772842A
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US1786299A
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US2387271A
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US2529431A
Cited
US2537273A
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US2501707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |