US2619741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated shoe construction
Assignee: Individual
•
Filing: 1950-09-16
•
Granted: 1952-12-02
•
Expires: 1970-09-16
Abstract
No abstract record available.
Inventors
- 👤 Clark John Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:50
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US87310A
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US177656A
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US483289A
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US809713A
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US848770A
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US960748A
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US1577791A
Cited
GB416437A
Cited
DE611531C
Cited
CH177245A
Cited
US2145102A
Cited
US2287026A
Cited
US2508994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |