Patent US2429375A successfully refreshed from Google Patents.
US2429375A
Expired / Lapsed
US
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Socket for drilling and countersinking tools
Assignee: ROBERT H CLARK
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Filing: 1943-08-11
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Granted: 1947-10-21
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Expires: 1963-08-11
Abstract
No abstract record available.
Inventors
- 👤 Lawson A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:38
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/10; B23B51/104; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17957; Y10T408/00; Y10T408/55; Y10T408/566; Y10T408/89; Y10T408/905; Y10T408/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US726388A
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US861010A
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US1028562A
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US1043098A
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US1264370A
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GB113914A
Cited
CH85610A
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US2192528A
Cited
US2216988A
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US2301151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-20 | 1951-04-21 | 1951-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-20 | 1955-04-21 | 1955-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-20 | 1959-04-21 | 1959-10-21 | $7700.00 | Window Closed / Lapsed |