US2422357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed speed control means for hydraulically operated machine tools
Assignee: Keppel LeTourneau USA Inc
•
Filing: 1944-01-22
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Granted: 1947-06-17
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Expires: 1964-01-22
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:22
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/26; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2531; Y10T82/2533
Claims Analysis
Total Claims: 0
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US2133170A
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US2360070A
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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) | 1950-06-16 | 1950-12-16 | 1951-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-16 | 1954-12-16 | 1955-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-16 | 1958-12-16 | 1959-06-17 | $7700.00 | Window Closed / Lapsed |