US2660441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collet chuck
Assignee: Individual
•
Filing: 1951-07-12
•
Granted: 1953-11-24
•
Expires: 1971-07-12
Abstract
No abstract record available.
Inventors
- 👤 Magnus E Toelcke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:57
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/14; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17291; Y10T279/17299; Y10T279/17411; Y10T279/17487; Y10T279/17504
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US466462A
Cited
US550113A
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US1160805A
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US1380716A
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US1930131A
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US2345069A
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US2460302A
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US2542693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |