US2483743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for centering the spindle of machine tools
Assignee: Societe Genevoise dInstruments de Physique
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Filing: 1948-03-31
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Granted: 1949-10-04
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Expires: 1968-03-31
Abstract
No abstract record available.
Inventors
- 👤 Turrettini Fernand William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:32
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/22; B23Q17/2233; B23Q17/225; B23Q17/2258; Y; Y10; Y10T; Y10T408/00; Y10T408/21; Y10T408/55; Y10T408/553; Y10T82/00; Y10T82/25; Y10T82/2572; Y10T82/30
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) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |