US2427322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collet construction for bar turning machines
Assignee: Republic Steel Corp
•
Filing: 1942-11-30
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Granted: 1947-09-09
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Expires: 1962-11-30
Abstract
No abstract record available.
Inventors
- 👤 Frederic M Darner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:55
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/08; B23B5/12; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/202; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17529; Y10T82/00; Y10T82/25; Y10T82/2527
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-08 | 1951-03-10 | 1951-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-08 | 1955-03-10 | 1955-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-08 | 1959-03-10 | 1959-09-09 | $7700.00 | Window Closed / Lapsed |