Patent US2423312A successfully refreshed from Google Patents.
US2423312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck adjusting device
Assignee: Individual
•
Filing: 1944-09-12
•
Granted: 1947-07-01
•
Expires: 1964-09-12
Abstract
No abstract record available.
Inventors
- 👤 Henry A Hamberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:27
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/36; B23B2260/00; B23B2260/088; Y; Y10; Y10T; Y10T279/00; Y10T279/14; Y10T82/00; Y10T82/27
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-30 | 1950-12-30 | 1951-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-30 | 1954-12-30 | 1955-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-30 | 1958-12-30 | 1959-07-01 | $7700.00 | Window Closed / Lapsed |