US2657768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Full-floating brake
Assignee: Individual
•
Filing: 1947-12-31
•
Granted: 1953-11-03
•
Expires: 1967-12-31
Abstract
No abstract record available.
Inventors
- 👤 Frank W Hunyady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:22
CPC Classifications
F; F16; F16D; F16D51/00; F16D51/46; F16D51/48; F16D51/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE220823C
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US1875523A
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US1678427A
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US1738750A
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FR627476A
Cited
US1996235A
Cited
US1992207A
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US2066308A
Cited
US2107092A
Cited
US2176204A
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US2296673A
Cited
US2246242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |