US2675241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck for machine tools
Assignee: Individual
•
Filing: 1950-12-15
•
Granted: 1954-04-13
•
Expires: 1970-12-15
Abstract
No abstract record available.
Inventors
- 👤 Henry N Petit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:28
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/40; B23B31/404; B23B31/4046; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T279/1054; Y10T279/19; Y10T279/34; Y10T279/3481
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US409674A
Cited
US1420682A
Cited
US1414460A
Cited
US2174866A
Cited
US2271637A
Cited
US2301655A
Cited
US2396521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |