US3223472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for improving the tinctorial characteristics of fibers obtained from olefin polymers
Assignee: Montedison SpA
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Filing: 1961-12-13
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Granted: 1965-12-14
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Expires: 1981-12-13
Abstract
No abstract record available.
Inventors
- 👤 Monaci Avito
- 👤 Lazzari Paolo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:01
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/22; D01; D01F; D01F1/00; D01F1/02; D01F1/10; D01F6/00; D01F6/02; D01F6/04; D01F6/06; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/65131; D06P3/00; D06P3/79; D06P3/791; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A PROCESS FOR IMPROVING THE DYE RECEPTIVITY OF FIBERS OBTAINED BY THE MELT EXTRUSION OF AT LEAST ONE CRYSTALLINE ALPHA-POLYOLEFIN AND A BASIC NITROGEN COMPOUND WHICH COMPRISES TREATING THE MELT EXTRUDED FIBERS WITH A SOLUTION OF AN ALKYLENE OXIDE.
Claim 2
Dependent Claim
39 words
A PROCESS FOR IMPROVING THE DYE RECEPTIVITY OF FIBERS OBTAINED BY THE MELT EXTRUSION OF AT LEAST ONE CRYSTALLINE ALPHA-POLYOLEFIN AND A BASIC NITROGEN COMPOUND WHICH COMPRISES TREATING THE MELT EXTRUDED FIBERS WITH A SOLUTION OF AN ALKYLENE OXIDE.
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |