Patent US2762248A successfully refreshed from Google Patents.
US2807732A
Expired / Lapsed
US
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Electric drill with built-in chuck key
Assignee: Individual
•
Filing: 1957-01-04
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Granted: 1957-09-24
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Expires: 1977-01-04
Abstract
No abstract record available.
Inventors
- 👤 Kurtovich Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:54
CPC Classifications
B; B23; B23B; B23B45/00; B23B45/006; B25; B25B; B25B33/00; B25B33/005; B23B2231/00; B23B2231/38; Y; Y10; Y10S; Y10S408/00; Y10S408/71; Y10T; Y10T279/00; Y10T279/34; Y10T279/3431; Y10T279/3451; Y10T408/00; Y10T408/94; Y10T408/95; Y10T408/953
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |