Patent US2563748A successfully refreshed from Google Patents.
US2563748A
Expired / Lapsed
US
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Bevel seat rim
Assignee: Wingfoot Corp
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Filing: 1943-09-27
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Granted: 1951-08-07
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Expires: 1963-09-27
Abstract
No abstract record available.
Inventors
- 👤 Riggs Frederick Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:47
CPC Classifications
B; B60; B60B; B60B25/00; B60B25/04; B60B25/14; B60B25/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US899856A
Cited
US1493040A
Cited
US1499739A
Cited
US2149205A
Cited
FR834215A
Cited
US2219156A
Cited
US2367823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |