US3232779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of producing regenerated cellulose
Assignee: Mo och Domsjo AB
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Filing: 1959-11-20
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Granted: 1966-02-01
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Expires: 1979-11-20
Abstract
No abstract record available.
Inventors
- 👤 Schonfeldt Nikolaus Augustin
- 👤 Grunewald Kurt Helmut
- 👤 Steijner Olof Rune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:01
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/61; C; C08; C08B; C08B16/00; D01; D01F; D01F2/00; D01F2/06; D01F2/08; D01F2/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
A VISCOSE SPINNING SOLUTION CONTAINING FROM ABOUT 0.1 TO ABOUT 4% BY WEIGHT OF THE CELLULOSE IN THE VISCOSE OF A MODIFIER SELECTED FROM THE GROUP CONSISTING OF (1) THE REACTION PRODUCT OF (A) FROM ABOUT ONE TO ABOUT TEN MOLES OF AN ALKYLENE OXIDE HAVING FROM TWO TO THREE CARBON ATOMS WITH (B) ONE MOLE OF AT LEAST ONE POLYAMIDE HAVING THE FORMULA:
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |