US2433733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing viscose rayon yarn
Assignee: Skenandoa Rayon Corp
•
Filing: 1945-01-04
•
Granted: 1947-12-30
•
Expires: 1965-01-04
Abstract
No abstract record available.
Inventors
- 👤 Alfred S Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:15
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1996989A
Cited
US2004271A
Cited
US2036313A
Cited
US2133715A
Cited
FR813762A
Cited
GB515127A
Cited
US2307863A
Cited
US2348415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |