US3057439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic brake adjustment
Assignee: Rockwell-Standard Corp
•
Filing: 1959-05-07
•
Granted: 1962-10-09
•
Expires: 1979-05-07
Abstract
No abstract record available.
Inventors
- 👤 Bryan E House
- 👤 James C Cumming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:27
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/54; F16D65/546
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2196137A
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US2273223A
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US2386913A
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US2570398A
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US2861657A
Cited
US2789666A
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US2870877A
Cited
GB812003A
Cited
US2875860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |