US1947862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Special high speed drive for the spindle of boring machines or other machine tools
Assignee: LUCAS MACHINE TOOL Co
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Filing: 1932-01-09
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Granted: 1934-02-20
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Expires: 1952-01-09
Abstract
No abstract record available.
Inventors
- 👤 Henry M Lucas
- 👤 Hallis N Stephan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:28
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/12; B23Q5/14; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5104; Y10T29/5105; Y10T408/00; Y10T408/65; Y10T408/67; Y10T408/675; Y10T408/6771; Y10T408/6774; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19242; Y10T74/19293; Y10T74/19298; Y10T74/19307; Y10T74/19312; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/2554
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-02-19 | 1937-08-21 | 1938-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-02-19 | 1941-08-21 | 1942-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-02-19 | 1945-08-21 | 1946-02-20 | $7700.00 | Window Closed / Lapsed |