Patent US2728248A successfully refreshed from Google Patents.
US2728248A
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Feed control mechanism for machine tools
Assignee: Individual
•
Filing: 1952-08-20
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Granted: 1955-12-27
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Expires: 1972-08-20
Abstract
No abstract record available.
Inventors
- 👤 Vlieg Charles B De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:40
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/22; B23B; B23B39/00; B23B39/02; B23Q16/00; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5104; Y10T29/5105; Y10T408/00; Y10T408/16; Y10T408/17; Y10T408/172; Y10T408/21; Y10T408/65; Y10T408/675; Y10T408/6757; Y10T409/00; Y10T409/30; Y10T409/306664; Y10T409/30672
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) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |