US2678218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal expansion chuck
Assignee: Individual
•
Filing: 1952-05-19
•
Granted: 1954-05-11
•
Expires: 1972-05-19
Abstract
No abstract record available.
Inventors
- 👤 Charles H Oslund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:36
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/40; B23B31/404; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T279/1054; Y10T279/1058; Y10T279/19; Y10T82/00; Y10T82/26; Y10T82/266; Y10T82/268
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE166107C
Cited
US1495451A
Cited
US1777316A
Cited
US2078416A
Cited
US2226078A
Cited
US2532934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |