US2560947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck for jeweler's screw driver
Assignee: Individual
•
Filing: 1948-05-25
•
Granted: 1951-07-17
•
Expires: 1968-05-25
Abstract
No abstract record available.
Inventors
- 👤 Charles B Greenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:51
CPC Classifications
B; B25; B25B; B25B23/00; B25B15/00; B25B15/02; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17205
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |