Patent US3286574A successfully refreshed from Google Patents.
US3286574A
Expired / Lapsed
US
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Paper slitting apparatus
Assignee: Individual
•
Filing: 1964-04-22
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Granted: 1966-11-22
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Expires: 1984-04-22
Abstract
No abstract record available.
Inventors
- 👤 Durand Auguste Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:50
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/0007; B02C2018/0023; B02C2018/0046; B02C2018/0069; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7809; Y10T83/783; Y10T83/7834; Y10T83/929; Y10T83/9372; Y10T83/9374
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |