Patent US3490335A successfully refreshed from Google Patents.
US3490335A
Expired / Lapsed
US
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Milling machine attachment
Assignee: Individual
•
Filing: 1967-08-28
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Granted: 1970-01-20
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Expires: 1987-08-28
Abstract
No abstract record available.
Inventors
- 👤 James L King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:14
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q2701/00; B23Q2701/02; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/304536; Y10T409/30588; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19358; Y10T74/19367
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) | 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 |