Patent US2473040A successfully refreshed from Google Patents.
US2473040A
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Brake rotor
Assignee: American Steel Foundries
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Filing: 1944-08-19
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Granted: 1949-06-14
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Expires: 1964-08-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter L Schlegel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:56
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/28; F04D29/281
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2076538A
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US2026263A
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US2162072A
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US2129199A
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US2204807A
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US2255023A
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US2263945A
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US2350970A
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US2380085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |