US2628437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antislip device
Assignee: Individual
•
Filing: 1949-08-19
•
Granted: 1953-02-17
•
Expires: 1969-08-19
Abstract
No abstract record available.
Inventors
- 👤 Edwin C Forsythe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:38
CPC Classifications
A; A43; A43C; A43C15/00; A43C15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US44961A
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US1024981A
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CH110731A
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US1796399A
Cited
US1980621A
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US2110839A
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US2193943A
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US2260037A
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US2426524A
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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) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |