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US2958324A
Expired / Lapsed
US
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Toe straightening device
Assignee: HEINRICH AD BERKEMANN
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Filing: 1955-05-20
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Granted: 1960-11-01
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Expires: 1975-05-20
Abstract
No abstract record available.
Inventors
- 👤 Berkemann Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:17
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/019
Claims Analysis
Total Claims: 0
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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) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |