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Patent US2660743A successfully refreshed from Google Patents.
US2660743A
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US
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Method of making rigidified slip-lasted shoes
Assignee: Individual
•
Filing: 1952-03-19
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Granted: 1953-12-01
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Expires: 1972-03-19
Abstract
No abstract record available.
Inventors
- 👤 Meltzer Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:02
CPC Classifications
A; A43; A43B; A43B9/00; A43B9/04; A43B9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US640900A
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US2277770A
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US2391445A
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US2404587A
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US2495590A
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US2520301A
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US2584276A
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US2493497A
Cited
US2514057A
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US2580037A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |