US1446829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turret-clamping mechanism for turret lathes
Assignee: Warner and Swasey Co
•
Filing: 1920-07-17
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Granted: 1923-02-27
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Expires: 1940-07-17
Abstract
No abstract record available.
Inventors
- 👤 Edward P Burrell
- 👤 George W Drake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:04
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/28; Y; Y10; Y10T; Y10T74/00; Y10T74/14; Y10T74/1494; Y10T82/00; Y10T82/25; Y10T82/2585; Y10T82/2587
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) | 1926-02-26 | 1926-08-28 | 1927-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-02-26 | 1930-08-28 | 1931-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-02-26 | 1934-08-28 | 1935-02-27 | $7700.00 | Window Closed / Lapsed |