Patent US2632488A successfully refreshed from Google Patents.
US2632488A
Expired / Lapsed
US
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Screw holding screw driver attachment
Assignee: Individual
•
Filing: 1948-07-15
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Granted: 1953-03-24
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Expires: 1968-07-15
Abstract
No abstract record available.
Inventors
- 👤 Maximilian C Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:54
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/02; B25B23/08; B25B23/10; B25B23/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US562566A
Cited
CH51679A
Cited
US1438469A
Cited
US1374057A
Cited
US1417995A
Cited
US1977323A
Cited
US2310287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |