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US2637233A
Expired / Lapsed
US
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Wrench handle having detachable hand wheel and flexible shaft
Assignee: Individual
•
Filing: 1948-06-25
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Granted: 1953-05-05
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Expires: 1968-06-25
Abstract
No abstract record available.
Inventors
- 👤 Theodore E Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:02
CPC Classifications
B; B25; B25B; B25B9/00; B25B13/00; B25B13/48; B25B13/481; B25B23/00; B25B23/0007; B25B23/0021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1507990A
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US1900169A
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US1903660A
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GB408895A
Cited
US2073903A
Cited
US2268802A
Cited
US2450734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |