Patent US2807100A successfully refreshed from Google Patents.
US2807100A
Expired / Lapsed
US
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Resilient heel construction
Assignee: Individual
•
Filing: 1956-03-16
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Granted: 1957-09-24
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Expires: 1976-03-16
Abstract
No abstract record available.
Inventors
- 👤 Carl A Windle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:56
CPC Classifications
A; A43; A43B; A43B21/00; A43B21/24; A43B21/26; A43B13/00; A43B13/02; A43B13/12; A43B21/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |