US2894339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heel protector
Assignee: Individual
•
Filing: 1958-11-06
•
Granted: 1959-07-14
•
Expires: 1978-11-06
Abstract
No abstract record available.
Inventors
- 👤 Viola E Shapiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:43
CPC Classifications
A; A43; A43B; A43B5/00; A43B5/007; A43B23/00; A43B23/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1602401A
Cited
US1708964A
Cited
US1819962A
Cited
FR667405A
Cited
US1855304A
Cited
US1945420A
Cited
US1955159A
Cited
DE632975C
Cited
US2552096A
Cited
US2763938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-13 | 1963-01-12 | 1963-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-13 | 1967-01-12 | 1967-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-13 | 1971-01-12 | 1971-07-14 | $7700.00 | Window Closed / Lapsed |