Patent US3061949A successfully refreshed from Google Patents.
US3061949A
Expired / Lapsed
US
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Shank strengthened rubber sole shoe
Assignee: COMFORT SLIPPER CORP
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Filing: 1960-10-20
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Granted: 1962-11-06
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Expires: 1980-10-20
Abstract
No abstract record available.
Inventors
- 👤 Rosenbaum Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:18
CPC Classifications
A; A43; A43B; A43B23/00; A43B23/22
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |