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US2575578A
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Assignee: Wingfoot Corp
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Filing: 1947-06-14
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Granted: 1951-11-20
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Expires: 1967-06-14
Abstract
No abstract record available.
Inventors
- 👤 Carl E Bricker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:34
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/2255; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/54; F16D65/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2167508A
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US2150631A
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US2236898A
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US2294452A
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US2288059A
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US2351041A
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US2380803A
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US2392970A
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US2460248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |