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Patent US3471912A successfully refreshed from Google Patents.
US3471912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool holder assembly for machine tools
Assignee: Individual
•
Filing: 1967-02-06
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Granted: 1969-10-14
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Expires: 1987-02-06
Abstract
No abstract record available.
Inventors
- 👤 George B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:29
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/24; B23B29/248; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5178; Y10T408/00; Y10T408/94; Y10T408/95; Y10T82/00; Y10T82/25; Y10T82/2583
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) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |