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US2950585A
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US
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Apparatus for use in the sharpening of knives, knife blades and the like
Assignee: Commonwealth Scientific and Industrial Research Organisation
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Filing: 1958-08-01
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Granted: 1960-08-30
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Expires: 1978-08-01
Abstract
No abstract record available.
Inventors
- 👤 Bell George Anketell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:53
CPC Classifications
B; B24; B24D; B24D15/00; B24D15/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22770E
Cited
US2675656A
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US786141A
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US1327498A
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US1453409A
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US1934139A
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US2002812A
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US1967113A
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US2821104A
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US2754719A
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US2806402A
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US2741077A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |