Patent US2194759A successfully refreshed from Google Patents.
US2194759A
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US
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Brake system
Assignee: Westinghouse Air Brake Co
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Filing: 1939-04-08
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Granted: 1940-03-26
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Expires: 1959-04-08
Abstract
No abstract record available.
Inventors
- 👤 Jr John W Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:27
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/52; B60T8/321; B60T8/3235; B61; B61H; B61H13/00; B61H13/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-03-26 | 1943-09-25 | 1944-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-03-26 | 1947-09-25 | 1948-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-03-26 | 1951-09-25 | 1952-03-26 | $7700.00 | Window Closed / Lapsed |