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US2885836A
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US
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Knife honing and sharpening device
Assignee: Individual
•
Filing: 1957-08-29
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Granted: 1959-05-12
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Expires: 1977-08-29
Abstract
No abstract record available.
Inventors
- 👤 Martial J Robitaille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:34
CPC Classifications
B; B24; B24D; B24D15/00; B24D15/06; B24D15/08; B24D15/081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1041631A
Cited
US1083490A
Cited
GB131130A
Cited
US1570083A
Cited
US2124646A
Cited
US2509636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |