US1779671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable spring clamp for securing an extra sole to footwear
Assignee: Individual
•
Filing: 1929-06-11
•
Granted: 1930-10-28
•
Expires: 1949-06-11
Abstract
No abstract record available.
Inventors
- 👤 Alvin H Hoyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:40
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1933-10-27 | 1934-04-28 | 1934-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-10-27 | 1938-04-28 | 1938-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-10-27 | 1942-04-28 | 1942-10-28 | $7700.00 | Window Closed / Lapsed |