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US2571345A
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US
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Rubber derivatives
Assignee: Wingfoot Corp
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Filing: 1946-11-19
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Granted: 1951-10-16
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Expires: 1966-11-19
Abstract
No abstract record available.
Inventors
- 👤 Ianni James D D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:29
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/20; C08C19/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1503429A
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US1503430A
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GB333290A
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US1981722A
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US2018643A
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US2018644A
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US2227777A
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US2311656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |