US2572297A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain-driven wrench
Assignee: B K SWEENEY MANUFACTURING Co
•
Filing: 1948-05-03
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Granted: 1951-10-23
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Expires: 1968-05-03
Abstract
No abstract record available.
Inventors
- 👤 Edward T Able
- 👤 Krieger Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:48
CPC Classifications
B; B25; B25B; B25B17/00; B25B13/00; B25B13/48; B25B13/481
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US891615A
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US1356555A
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US1494200A
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FR642558A
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US2353642A
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US2341775A
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US2379878A
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US2466456A
Cited
US2460671A
Cited
US2436650A
Cited
US2539861A
Cited
US2482387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-22 | 1955-04-23 | 1955-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-22 | 1959-04-23 | 1959-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-22 | 1963-04-23 | 1963-10-23 | $7700.00 | Window Closed / Lapsed |