US2620196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic collet chuck closer
Assignee: Union Manufacturing Co
•
Filing: 1948-02-14
•
Granted: 1952-12-02
•
Expires: 1968-02-14
Abstract
No abstract record available.
Inventors
- 👤 Albert E Church
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:07
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/204; Y; Y10; Y10T; Y10T279/00; Y10T279/12; Y10T279/1224; Y10T279/1241; Y10T279/1249; Y10T279/1258; Y10T279/17; Y10T279/17411; Y10T279/17529
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1851723A
Cited
US2267815A
Cited
US2428496A
Cited
US2393458A
Cited
US2509673A
Cited
US2500383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |