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US3220123A
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US
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Heel with core
Assignee: St Lawrence Manufacturing Co Inc
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Filing: 1964-02-06
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Granted: 1965-11-30
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Expires: 1984-02-06
Abstract
No abstract record available.
Inventors
- 👤 George A E Couture
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:09
CPC Classifications
A; A43; A43B; A43B5/00; A43B5/16; A43B5/1641; A43B21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1564158A
Cited
US1735369A
Cited
US1738048A
Cited
US1932293A
Cited
US2025647A
Cited
US2375153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |