US2509673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure operated chuck
Assignee: Union Manufacturing Co
•
Filing: 1947-05-15
•
Granted: 1950-05-30
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Expires: 1967-05-15
Abstract
No abstract record available.
Inventors
- 👤 Albert E Church
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:41
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/16; B23B31/16195; B23B31/16216; B23B31/24; B23B31/30; B23B31/302; B23B2226/00; B23B2226/33; Y; Y10; Y10T; Y10T279/00; Y10T279/12; Y10T279/1274; Y10T279/1291; Y10T279/19; Y10T279/1961
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US926761A
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FR500678A
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US1406451A
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US1613090A
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US1851723A
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US1934411A
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US2267815A
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US2386313A
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US2394311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |