Patent US1668480A successfully refreshed from Google Patents.
US1668480A
Expired / Lapsed
US
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Ankle strap for shoes
Assignee: BA Ballou and Co Inc
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Filing: 1927-04-22
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Granted: 1928-05-01
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Expires: 1947-04-22
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Ballou
- 👤 Rogers T Stafford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:59
CPC Classifications
A; A43; A43C; A43C11/00; A43C11/24; A43C11/14
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) | 1931-05-01 | 1931-10-31 | 1932-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-05-01 | 1935-10-31 | 1936-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-05-01 | 1939-10-31 | 1940-05-01 | $7700.00 | Window Closed / Lapsed |