US3047412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Viscose composition and method of spinning
Assignee: GAF Chemicals Corp
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Filing: 1961-04-13
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Granted: 1962-07-31
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Expires: 1981-04-13
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:37
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06; D01F2/08; D01F2/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A VISCOSE COMPOSITION CONTAINING FROM 1 TO 5% OF THE CELLULOSE IN SAID VISCOSE OF A POLYOXYETHTLENATED BUTYNEDIOL CONTAINING AN AVERAGE OF FROM 4 TO 20 MOLES OF ETHYLENE OXIDE PER MOLE OF 2-BUTYNE-1,4-DIOL.
Claim 2
Dependent Claim
34 words
A VISCOSE COMPOSITION CONTAINING FROM 1 TO 5% OF THE CELLULOSE IN SAID VISCOSE OF A POLYOXYETHTLENATED BUTYNEDIOL CONTAINING AN AVERAGE OF FROM 4 TO 20 MOLES OF ETHYLENE OXIDE PER MOLE OF 2-BUTYNE-1,4-DIOL.
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) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |