US2949740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive vehicle type brake apparatus with pulsating feature
Assignee: Westinghouse Air Brake Co
•
Filing: 1957-01-29
•
Granted: 1960-08-23
•
Expires: 1977-01-29
Abstract
No abstract record available.
Inventors
- 👤 Burton S Aikman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:36
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/321; B60T8/3295; B60T8/34; B60T8/40; B60T8/4018; B60T8/4027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1207801A
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FR543418A
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GB493697A
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US2270585A
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FR50803E
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GB676680A
Cited
GB696470A
Cited
US2753017A
Cited
US2660266A
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US2747697A
Cited
US2807141A
Cited
US2812983A
Cited
US2800370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |