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US2810313A
Expired / Lapsed
US
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Open-end ratchet wrenches of the spanner type
Assignee: PLOMB TOOL Co
•
Filing: 1954-06-18
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Granted: 1957-10-22
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Expires: 1974-06-18
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Hermanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:34
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/46; Y; Y10; Y10S; Y10S81/00; Y10S81/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US620143A
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US810304A
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US1198913A
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US1913906A
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US2578687A
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DE828676C
Cited
US2659257A
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US2700315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |