Patent US2889669A successfully refreshed from Google Patents.
US2889669A
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Method of making fluted cutting tools
Assignee: ECLIPSE COUNTERBORE Co
•
Filing: 1954-12-10
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Granted: 1959-06-09
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Expires: 1974-12-10
Abstract
No abstract record available.
Inventors
- 👤 Seth M Babbitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:51
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/02; B24B3/04; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1946; Y10T407/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1275218A
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US1858568A
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US1931684A
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US2124818A
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US2246865A
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US2335100A
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GB609964A
Cited
US2377329A
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US2607175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |