US2858185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Viscose spinning process
Assignee: Akzo Nobel UK PLC
•
Filing: 1952-01-12
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Granted: 1958-10-28
•
Expires: 1972-01-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Schappel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:53
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06; D01F2/08; D01F2/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
THE METHOD OF PRODUCING A SHAPED ARTICLE COMPRISING REGENERATED CELLULOSE AND CHARACTERIZED BY DECREASED WATER-SENSITIVITY AS COMPARED TO NORMAL REGENERATED CELLULOSE ARTICLES WHICH COMPRISES MIXING WITH VISCOSE AN AQUEOUS DISPERSION OF A LINERA POLYMER, AT LEAST 30% OF THE UNTIS OF WHICH CONSIST OF AN AMIDE HAVING THE FORMULA:
Claim 2
Independent Claim
49 words
THE METHOD OF PRODUCING A SHAPED ARTICLE COMPRISING REGENERATED CELLULOSE AND CHARACTERIZED BY DECREASED WATER-SENSITIVITY AS COMPARED TO NORMAL REGENERATED CELLULOSE ARTICLES WHICH COMPRISES MIXING WITH VISCOSE AN AQUEOUS DISPERSION OF A LINERA POLYMER, AT LEAST 30% OF THE UNTIS OF WHICH CONSIST OF AN AMIDE HAVING THE FORMULA:
References Cited (Backward Citations)
US2071251A
Cited
US2322981A
Cited
US2173005A
Cited
GB482897A
Cited
US2328901A
Cited
US2347525A
Cited
US2521748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |