US2749133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core chuck
Assignee: Individual
•
Filing: 1954-08-16
•
Granted: 1956-06-05
•
Expires: 1974-08-16
Abstract
No abstract record available.
Inventors
- 👤 James C Rich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:36
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/117; B23B31/1175; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/24; B65H75/242; B65H75/245; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T279/1045; Y10T279/1066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US163217A
Cited
US1216244A
Cited
US1810403A
Cited
US2209737A
Cited
US2466974A
Cited
US2647701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |