Patent US2612166A successfully refreshed from Google Patents.
US2612166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
End lock for rings of mechanical bindings
Assignee: Individual
•
Filing: 1952-01-29
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Granted: 1952-09-30
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Expires: 1972-01-29
Abstract
No abstract record available.
Inventors
- 👤 Clarence D Trussell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:18
CPC Classifications
B; B42; B42B; B42B5/00; B42B5/08; B42B5/10
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) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |