US2873540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shoe with changeable elements
Assignee: Individual
•
Filing: 1955-08-02
•
Granted: 1959-02-17
•
Expires: 1975-08-02
Abstract
No abstract record available.
Inventors
- 👤 Murphy Venus Ramey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:01
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1274111A
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USRE18054E
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US2207306A
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US2178025A
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US2153968A
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US2200080A
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US2368314A
Cited
US2528951A
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DE822948C
Cited
US2651117A
Cited
US2750685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |