Patent US2687192A successfully refreshed from Google Patents.
US2687192A
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US
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Brake cooling device
Assignee: Old Carco LLC
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Filing: 1949-11-30
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Granted: 1954-08-24
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Expires: 1969-11-30
Abstract
No abstract record available.
Inventors
- 👤 John P Butterfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:01
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/78; F16D65/82; F16D65/827
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE633369C
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US1924060A
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US2059170A
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FR779937A
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US2105176A
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US2143950A
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US2088967A
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US2124469A
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US2208525A
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US2441008A
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US2563769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |