US2894418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saw blade sharpeners
Assignee: Individual
•
Filing: 1957-07-29
•
Granted: 1959-07-14
•
Expires: 1977-07-29
Abstract
No abstract record available.
Inventors
- 👤 Clinton D Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:42
CPC Classifications
B; B23; B23D; B23D63/00; B23D63/08; B23D63/12; B23D63/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1134833A
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US1372033A
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US2203979A
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US2301264A
Cited
US2498951A
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US2586236A
Cited
US2651219A
Cited
US2613483A
Cited
US2729987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-13 | 1963-01-12 | 1963-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-13 | 1967-01-12 | 1967-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-13 | 1971-01-12 | 1971-07-14 | $7700.00 | Window Closed / Lapsed |