US3440812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the continuous ringless spinning of yarn from separated staple fibers in a rotating spinning chamber
Assignee: Vyzkumny Ustav Bavlnarsky AS
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Filing: 1967-10-09
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Granted: 1969-04-29
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Expires: 1987-10-09
Abstract
No abstract record available.
Inventors
- 👤 Josef Stary
- 👤 Miloslav Kubovy
- 👤 Dolni Dobrouc
- 👤 Erik Jirasek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:45
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/04; D01H4/08; D01H4/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3163976A
Cited
US3324642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |