Patent US4010250A successfully refreshed from Google Patents.
US2596594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck feature of tools of the detachably connected shank and handle type
Assignee: PARK METALWARE Co Inc
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Filing: 1950-10-11
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Granted: 1952-05-13
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Expires: 1970-10-11
Abstract
No abstract record available.
Inventors
- 👤 John N Petre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:18
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/0007; B25B23/0042; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17786; Y10T279/17905; Y10T279/17914
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) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |