Patent US2578091A successfully refreshed from Google Patents.
US2578091A
Expired / Lapsed
US
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Leather soled sock with rearwardly extending toe cap
Assignee: Ripon Knitting Works
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Filing: 1950-01-28
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Granted: 1951-12-11
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Expires: 1970-01-28
Abstract
No abstract record available.
Inventors
- 👤 Alfred S Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:59
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/10; A43B3/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US590295A
Cited
US1335287A
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US1661726A
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FR859262A
Cited
FR866772A
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US2391023A
Cited
US2541020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |