US2791144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turning device
Assignee: Individual
•
Filing: 1949-10-18
•
Granted: 1957-05-07
•
Expires: 1969-10-18
Abstract
No abstract record available.
Inventors
- 👤 Berthiez Charles William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:48
CPC Classifications
B; B23; B23B; B23B3/00; B23B3/08; B23B3/10; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2531; Y10T82/2541
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |