US2552041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor control for machine-tool drives
Assignee: Baker Bros Inc
•
Filing: 1946-11-08
•
Granted: 1951-05-08
•
Expires: 1966-11-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Hallenbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:24
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/26; B23Q5/266; B23Q5/268; F; F15; F15B; F15B21/00; F15B21/10; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5179; Y10T408/00; Y10T408/16; Y10T408/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US588021A
Cited
US838169A
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US1069995A
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US1740027A
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US1998873A
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US1926995A
Cited
US2114389A
Cited
US2182624A
Cited
US2444228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |