US2656018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake apparatus
Assignee: Westinghouse Air Brake Co
•
Filing: 1949-02-04
•
Granted: 1953-10-20
•
Expires: 1969-02-04
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Bent
- 👤 Samuel L Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:13
CPC Classifications
B; B61; B61H; B61H15/00; B60; B60T; B60T17/00; B60T17/08; B60T17/081; B61H13/00; B61H13/02; B61H13/04; B61H15/0064; F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/42; F16D65/50; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1956; Y10T74/19565; Y10T74/1957; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/206; Y10T74/20636; Y10T74/2093
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1594463A
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US1589434A
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US1887832A
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US2294974A
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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) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |