Patent US2618796A successfully refreshed from Google Patents.
US2618796A
Expired / Lapsed
US
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Stiffening uppers of shoes
Assignee: United Shoe Machinery Corp
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Filing: 1949-05-05
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Granted: 1952-11-25
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Expires: 1969-05-05
Abstract
No abstract record available.
Inventors
- 👤 John J Brophy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:06
CPC Classifications
A; A43; A43B; A43B23/00; A43B23/08; A43B23/16; A43D; A43D11/00; A43D11/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1215875A
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US2127896A
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US2233477A
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US2216581A
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US2273891A
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US2324068A
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GB555054A
Cited
US2343390A
Cited
US2332501A
Cited
US2460566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |