Patent US3230029A successfully refreshed from Google Patents.
US3230029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for improving synthetic fibers and the dyeable fibers obtained thereby
Assignee: Montedison SpA
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Filing: 1959-02-13
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Granted: 1966-01-18
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Expires: 1979-02-13
Abstract
No abstract record available.
Inventors
- 👤 Cappuccio Vittorio
- 👤 Maltese Paolo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:34
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/79; D06P3/794; D06M; D06M11/00; D06M11/51; D06M11/55; D06P1/00; D06P1/44; D06P1/52; D06P1/5207; D06P1/5214; D06P1/5242; D06P1/64; D06P1/642; D06P1/645; D06P1/673; D06P1/67333; D06P1/6735; D06P1/67375; D06P3/791; D06P3/792; D06P5/00; D06P5/22; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
FIBERS CONSISTING ESSENTIALLY OF A FIBER-FORMING MATERIAL SELECTED FROM THE GROUP CONSISTING OF CRYSTALLINE POLYPROPYLENE MADE UP PREVAILINGLY OF ISOTACTIC MACROMOLECULES, AND BLENDS OF SAID POLYPROPYLENE WITH FROM 5% TO 25% BY WEIGHT OF POLYSTYRENE, THE POLYPROPYLENE HAVING SUBSTITUTED THEREIN AT LEAST ONE OF THE GROUPS SELECTED FROM SULFONIC AND CHLOROSULFONIC GROUPS IN A PROPORTION SUCH THAT THE TOTAL AMOUNT OF COMBINED SULFUR IS FROM ABOUT 0.3% TO ABOUT 0.5% BY WEIGHT AND THE TOTAL COMBINED CHLORINE, IF ANY, IS FROM ABOUT 0.27% TO ABOUT 1.35%, THE FIBERS BEING DYED WITH A BASIC DYE.
Claim 2
Dependent Claim
94 words
FIBERS CONSISTING ESSENTIALLY OF A FIBER-FORMING MATERIAL SELECTED FROM THE GROUP CONSISTING OF CRYSTALLINE POLYPROPYLENE MADE UP PREVAILINGLY OF ISOTACTIC MACROMOLECULES, AND BLENDS OF SAID POLYPROPYLENE WITH FROM 5% TO 25% BY WEIGHT OF POLYSTYRENE, THE POLYPROPYLENE HAVING SUBSTITUTED THEREIN AT LEAST ONE OF THE GROUPS SELECTED FROM SULFONIC AND CHLOROSULFONIC GROUPS IN A PROPORTION SUCH THAT THE TOTAL AMOUNT OF COMBINED SULFUR IS FROM ABOUT 0.3% TO ABOUT 0.5% BY WEIGHT AND THE TOTAL COMBINED CHLORINE, IF ANY, IS FROM ABOUT 0.27% TO ABOUT 1.35%, THE FIBERS BEING DYED WITH A BASIC DYE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |