US2958349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curved extension drill
Assignee: Individual
•
Filing: 1957-08-26
•
Granted: 1960-11-01
•
Expires: 1977-08-26
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Mcnutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:31
CPC Classifications
B; B23; B23B; B23B45/00; B23B45/003; B23B45/005; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/043; B23Q5/045; B27; B27C; B27C3/00; B27C3/08; Y; Y10; Y10T; Y10T408/00; Y10T408/50; Y10T408/65; Y10T408/665
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US504720A
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US698418A
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US1367042A
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US1595922A
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DE512337C
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US1910768A
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US2117659A
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DE749949C
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US2608384A
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US2726847A
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US2711199A
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US2739585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |