US3371568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for checking knots
Assignee: Zellweger Uster AG
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Filing: 1966-03-28
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Granted: 1968-03-05
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Expires: 1986-03-28
Abstract
No abstract record available.
Inventors
- 👤 Felix Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:43
CPC Classifications
B; B65; B65H; B65H63/00; B65H63/06; B65H63/062; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/525; Y10T83/531; Y10T83/541; Y10T83/543
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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |