Patent US2686283A successfully refreshed from Google Patents.
US2686283A
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US
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Electric motor control for boring, drilling, and milling machines
Assignee: New Britain Machine Co
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Filing: 1948-06-23
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Granted: 1954-08-10
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Expires: 1968-06-23
Abstract
No abstract record available.
Inventors
- 👤 Hallis N Stephan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:55
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/28; B23Q2705/00; B23Q2705/10; B23Q2705/14; B23Q2705/145; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/308792; Y10T409/308848
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1656313A
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US1868016A
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US2259574A
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US2308709A
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US2329756A
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US2438098A
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US2443278A
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US2469594A
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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) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |