Patent US2728592A successfully refreshed from Google Patents.
US2728592A
Expired / Lapsed
US
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Brake chamber push rod seal
Assignee: Bendix Westinghouse Automotive Air Brake Co
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Filing: 1953-04-27
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Granted: 1955-12-27
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Expires: 1973-04-27
Abstract
No abstract record available.
Inventors
- 👤 Vorech Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:13
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/56; B; B60; B60T; B60T17/00; B60T17/08; B60T17/081; F15; F15B; F15B15/00; F15B15/08; F15B15/10; F16J15/50; F16J15/52; F16J3/00; F16J3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |