US2163836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Backlash-eliminating mechanism for machine tools
Assignee: Cincinnati Grinders Inc
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Filing: 1937-06-23
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Granted: 1939-06-27
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Expires: 1957-06-23
Abstract
No abstract record available.
Inventors
- 👤 Frederick S Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:33
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/54; B23Q5/56; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/304536; Y10T409/304592; Y10T74/00; Y10T74/19; Y10T74/19623; Y10T74/1987; Y10T74/19893; Y10T74/19898
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) | 1942-06-26 | 1942-12-26 | 1943-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-26 | 1946-12-26 | 1947-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-26 | 1950-12-26 | 1951-06-27 | $7700.00 | Window Closed / Lapsed |