US2747666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slitting machine having two laterally movable outer knives and a center knife maintained midway between the outer knives
Assignee: Columbus Coated Fabrics Corp
•
Filing: 1953-07-28
•
Granted: 1956-05-29
•
Expires: 1973-07-28
Abstract
No abstract record available.
Inventors
- 👤 Harold H Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:30
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/003; B26D1/00; B26D1/01; B26D1/02; B26D1/03; B26D1/035; B44; B44C; B44C7/00; B44C7/02; B44C7/025; D; D06; D06H; D06H7/00; B65; B65H; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/4148; B65H2301/41487; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/949; Y10T; Y10T83/00; Y10T83/525; Y10T83/531; Y10T83/538; Y10T83/647; Y10T83/6584; Y10T83/6604
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |