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Patent US3067509A successfully refreshed from Google Patents.
US3067509A
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Hole diameter reducing tool
Assignee: Besly Cutting Tools Inc
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Filing: 1959-11-23
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Granted: 1962-12-11
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Expires: 1979-11-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Donald P Welles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:53
CPC Classifications
B; B24; B24B; B24B39/00; B24B39/02; B23; B23G; B23G7/00; B23G7/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49748; Y10T29/51; Y10T29/5147
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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |