US2817227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for treatment of freshly spun rayon filament yarn
Assignee: SVENSKTKONSTSILKE AB
•
Filing: 1951-08-03
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Granted: 1957-12-24
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Expires: 1971-08-03
Abstract
No abstract record available.
Inventors
- 👤 Eriksson Artur Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:25
CPC Classifications
D; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0472
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US821812A
Cited
US975074A
Cited
US1916946A
Cited
US2080635A
Cited
US2196695A
Cited
US2366136A
Cited
US2494807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |