US2997906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slitting knife holders with fluid actuating means for the slitters
Assignee: Individual
•
Filing: 1957-11-21
•
Granted: 1961-08-29
•
Expires: 1977-11-21
Abstract
No abstract record available.
Inventors
- 👤 Burk Willy
- 👤 Koln Bezirk
- 👤 Wingen Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:15
CPC Classifications
B; B26; B26D; B26D5/00; B26D5/02; B26D5/04; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7809; Y10T83/7851; Y10T83/7855; Y10T83/869; Y10T83/8821; Y10T83/8858; Y10T83/929; Y10T83/9372; Y10T83/9403
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) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |