US2745168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Second operation production chucking machine
Assignee: Individual
•
Filing: 1952-01-05
•
Granted: 1956-05-15
•
Expires: 1972-01-05
Abstract
No abstract record available.
Inventors
- 👤 Stefano Frank Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:23
CPC Classifications
B; B23; B23Q; B23Q39/00; B23Q39/04; B23Q39/042; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/50; B23Q1/54; B23Q1/5468; B23Q16/00; B23Q16/02; B23Q16/04; B23Q16/06; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5127; Y10T29/5129; Y10T29/5179
Claims Analysis
Total Claims: 0
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US2271583A
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US2291382A
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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) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |