Patent US2669727A successfully refreshed from Google Patents.
US2669727A
Expired / Lapsed
US
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Artificial hand
Assignee: Individual
•
Filing: 1951-07-24
•
Granted: 1954-02-23
•
Expires: 1971-07-24
Abstract
No abstract record available.
Inventors
- 👤 Opuszenski Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:59
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/54; A61F2/58; A61F2/583; A61F2/586; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30316; A61F2002/30329; A61F2002/30518; A61F2002/30523; A61F2/68; A61F2/70; A61F2002/701; A61F2220/00; A61F2220/0025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US26378A
Cited
US999484A
Cited
US984179A
Cited
GB101864A
Cited
US1247077A
Cited
US1377956A
Cited
US2172167A
Cited
US2408880A
Cited
US2457305A
Cited
US2549716A
Cited
US2442530A
Cited
US2486746A
Cited
US2568051A
Cited
US2567066A
Cited
US2580987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |