Patent US3509624A successfully refreshed from Google Patents.
US3404490A
Expired / Lapsed
US
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Honing machine with automatic force control
Assignee: Barnes Drill Co
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Filing: 1965-09-17
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Granted: 1968-10-08
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Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Mark R Estabrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:49
CPC Classifications
B; B23; B23Q; B23Q15/00; B23Q15/007; B23Q15/12; B24; B24B; B24B33/00; B24B33/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |