Patent US3512441A successfully refreshed from Google Patents.
US3512441A
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Adjustable gang slitter
Assignee: HUDSON MACHINE AND TOOL CORP
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Filing: 1968-05-14
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Granted: 1970-05-19
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Expires: 1988-05-14
Abstract
No abstract record available.
Inventors
- 👤 Frank R Benedict
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:55
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/22; B23; B23D; B23D15/00; B23D15/12; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8759; Y10T83/8776; Y10T83/8785; Y10T83/8821; Y10T83/8828; Y10T83/929; Y10T83/9411; Y10T83/9449; Y10T83/9457; Y10T83/9473; Y10T83/9483; Y10T83/9486
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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |