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Patent US2800982A successfully refreshed from Google Patents.
US2800982A
Expired / Lapsed
US
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Brake rotor
Assignee: American Steel Foundries
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Filing: 1950-07-22
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Granted: 1957-07-30
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Expires: 1970-07-22
Abstract
No abstract record available.
Inventors
- 👤 Robert B Cottrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:17
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/12; F16D65/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1572870A
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US2215420A
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US2233594A
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US2255023A
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US2255024A
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US2380085A
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US2368985A
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US2393032A
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US2451709A
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FR933272A
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US2587047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |