Patent US2730145A successfully refreshed from Google Patents.
US2730145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool with retractable bit
Assignee: Individual
•
Filing: 1953-01-07
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Granted: 1956-01-10
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Expires: 1973-01-07
Abstract
No abstract record available.
Inventors
- 👤 Vincent C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:20
CPC Classifications
B; B25; B25B; B25B15/00; B25B15/02; B25G; B25G1/00; B25G1/08; B25G1/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US553965A
Cited
US2632489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |