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US2671484A
Expired / Lapsed
US
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Magnetic tool
Assignee: Individual
•
Filing: 1948-11-18
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Granted: 1954-03-09
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Expires: 1968-11-18
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:43
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/02; B25B23/08; B25B23/12; Y; Y10; Y10S; Y10S7/00; Y10S7/901; Y10S81/00; Y10S81/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US935256A
Cited
US1265113A
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US1501695A
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US1645753A
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US1855456A
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US2260055A
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US2258861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |