Patent US2833284A successfully refreshed from Google Patents.
US2833284A
Expired / Lapsed
US
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Patellar needle
Assignee: Individual
•
Filing: 1957-02-25
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Granted: 1958-05-06
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Expires: 1977-02-25
Abstract
No abstract record available.
Inventors
- 👤 Henry A Springer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:53
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/0482; A61B17/06; A61B17/06066; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/38; A61F2/3877
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) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |