US2496756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for hydraulically driven machine tool elements
Assignee: Barnes Drill Co
•
Filing: 1943-05-26
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Granted: 1950-02-07
•
Expires: 1963-05-26
Abstract
No abstract record available.
Inventors
- 👤 Earnest Y Seborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:15
CPC Classifications
B; B24; B24B; B24B47/00; B24B47/02; B24B47/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB124793A
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US1893076A
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US1943061A
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US2071677A
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US2203938A
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US2249343A
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US2271615A
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US2161150A
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US2247479A
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US2246476A
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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) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |