Patent US3448641A successfully refreshed from Google Patents.
US3448641A
Expired / Lapsed
US
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Open end ratchet wrench with a removable head
Assignee: WILLIAM J MORROW
•
Filing: 1967-09-29
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Granted: 1969-06-10
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Expires: 1987-09-29
Abstract
No abstract record available.
Inventors
- 👤 William J Morrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:45
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/46; B25B13/461; B25B13/462; B25B13/463; Y; Y10; Y10T; Y10T408/00; Y10T408/63
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US308969A
Cited
US1101381A
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US645148A
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US969379A
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US974121A
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US978395A
Cited
US2537175A
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US3299725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |