Patent US3485121A successfully refreshed from Google Patents.
US3485121A
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Method and apparatus for chain cutting textile webs and the like
Assignee: Birch Brothers Inc
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Filing: 1967-08-31
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Granted: 1969-12-23
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Expires: 1987-08-31
Abstract
No abstract record available.
Inventors
- 👤 Clifford W Birch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:54
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/26; B65H19/265; D; D06; D06H; D06H7/00; D06H7/02; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0605; Y10T83/707; Y10T83/7158; Y10T83/7189; Y10T83/869; Y10T83/8748; Y10T83/8874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2665757A
Cited
US3199393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |