Patent US2691979A successfully refreshed from Google Patents.
US2691979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchor for unilateral traction
Assignee: Individual
•
Filing: 1951-06-13
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Granted: 1954-10-19
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Expires: 1971-06-13
Abstract
No abstract record available.
Inventors
- 👤 William S Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:57
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/04; A61G; A61G13/00; A61G13/0036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US824612A
Cited
US1160451A
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US2200541A
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US2266296A
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US2477562A
Cited
US2565019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-18 | 1958-04-19 | 1958-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-18 | 1962-04-19 | 1962-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-18 | 1966-04-19 | 1966-10-19 | $7700.00 | Window Closed / Lapsed |