US2867442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power chuck
Assignee: Union Manufacturing Co
•
Filing: 1956-12-10
•
Granted: 1959-01-06
•
Expires: 1976-12-10
Abstract
No abstract record available.
Inventors
- 👤 Walter F Skillin
- 👤 Damijonaitis Alexandra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:29
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/16; B23B31/16004; Y; Y10; Y10T; Y10T279/00; Y10T279/19; Y10T279/1926
Claims Analysis
Total Claims: 0
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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) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |