US3490315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for widening and precision finishing through bores and dead bores
Assignee: Individual
•
Filing: 1967-06-15
•
Granted: 1970-01-20
•
Expires: 1987-06-15
Abstract
No abstract record available.
Inventors
- 👤 Francesco Melchiorre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:53
CPC Classifications
B; B23; B23D; B23D77/00; B23D77/02; B23D77/04; B23D77/044; B23D2277/00; B23D2277/46; Y; Y10; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3286557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |