US2675654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Honing stone and method of
Assignee: —
•
Filing: —
•
Granted: 1954-04-20
•
Expires: 1971-04-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:46
CPC Classifications
B; B24; B24B; B24B33/00; B24B33/08; B24B33/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1708059A
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US1962947A
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US1973117A
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US2106205A
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US2073590A
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US2263781A
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US2265377A
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US2304984A
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US2349977A
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US2369291A
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US2509652A
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US2537684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |