Patent US301931A successfully refreshed from Google Patents.
Patent US2862785A successfully refreshed from Google Patents.
US2862785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulose triacetate fabrics of improved safe ironing temperature and process of heat treatment to obtain said fabrics
Assignee: Acordis UK Ltd
•
Filing: 1953-12-28
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Granted: 1958-12-02
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Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 Finlayson Donald
- 👤 Krzesinski Boleslaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:35
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/01; D06M11/05; D01; D01F; D01F2/00; D01F2/24; D01F2/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
58 words
TEXTILE FABRICS COMPRISING THERMOPLASTIC FIBERS, SAID FABRICS BEING CAPABLE OF BEING IRONED SAFELY AT A TEMPERATURE BETWEEN 220* AND 240*C., ALL THE SAID THERMOPLASTIC FIBERS CONSISTING OF A CELLULOSE TIACETATE OF ACETYL VALUE ABOVE 59% RECKONED AS ACETIC ACID, SAID CELLULOSE TRIACETATE BEING IN THAT CRYSTALLINE STATE IN WHICH FIBERS THEREOF HAVE A STICKING TEMPERATURE OF ABOUT 220*-240*C.
Claim 2
Dependent Claim
58 words
TEXTILE FABRICS COMPRISING THERMOPLASTIC FIBERS, SAID FABRICS BEING CAPABLE OF BEING IRONED SAFELY AT A TEMPERATURE BETWEEN 220* AND 240*C., ALL THE SAID THERMOPLASTIC FIBERS CONSISTING OF A CELLULOSE TIACETATE OF ACETYL VALUE ABOVE 59% RECKONED AS ACETIC ACID, SAID CELLULOSE TRIACETATE BEING IN THAT CRYSTALLINE STATE IN WHICH FIBERS THEREOF HAVE A STICKING TEMPERATURE OF ABOUT 220*-240*C.
Claim 3
Dependent Claim
127 words
PROCESS FOR THE MANUFACTURE OF TEXTILE FABRICS COMPRISING THERMOPLASTIC FIBERS YET CAPABLE OF BEING IRONED SAFETLY AT TEMPERATURE BETWEEN 220* AND 240*C., WHICH COMPRISES HEATING A FABRIC COMPRISING THERMOPLASTIC FIBERS ALL OF WHICH CONSIST OF A CELLULOSE TRIACETATE OF ACETYL VALUE ABOVE 59% RECKONED AS ACETIC ACID, THE SAID CELLULOSE TRIACETATE BEING IN THAT CRYSTALLINE STAGE IN WHICH FIBERS THEREOF HAVE A STICKING TEMPERATURE OF ABOUT 200* C., TO A TEMPERATURE BETWEEN 120* AND 285*C. AT LEAST UNTIL THE CELLULOSE TRIACETATE HAS BEEN CONVERTED INTO THAT CRYSTALLINE STATE IN WHICH FIBERS THEREOF HAVE A STICKING TEMPERATURE OF ABOUT 220*-240*C., THE TENSION ON THE FABRIC DURING THE SAID HEATING BEING AT MOST AT A VALUE AT WHICH THE DIMENSIONS OF THE FABRIC ARE SUBSTANTIALLY CONSTANT DURING SAID HEATING.
Claim 4
Dependent Claim
127 words
PROCESS FOR THE MANUFACTURE OF TEXTILE FABRICS COMPRISING THERMOPLASTIC FIBERS YET CAPABLE OF BEING IRONED SAFETLY AT TEMPERATURE BETWEEN 220* AND 240*C., WHICH COMPRISES HEATING A FABRIC COMPRISING THERMOPLASTIC FIBERS ALL OF WHICH CONSIST OF A CELLULOSE TRIACETATE OF ACETYL VALUE ABOVE 59% RECKONED AS ACETIC ACID, THE SAID CELLULOSE TRIACETATE BEING IN THAT CRYSTALLINE STAGE IN WHICH FIBERS THEREOF HAVE A STICKING TEMPERATURE OF ABOUT 200* C., TO A TEMPERATURE BETWEEN 120* AND 285*C. AT LEAST UNTIL THE CELLULOSE TRIACETATE HAS BEEN CONVERTED INTO THAT CRYSTALLINE STATE IN WHICH FIBERS THEREOF HAVE A STICKING TEMPERATURE OF ABOUT 220*-240*C., THE TENSION ON THE FABRIC DURING THE SAID HEATING BEING AT MOST AT A VALUE AT WHICH THE DIMENSIONS OF THE FABRIC ARE SUBSTANTIALLY CONSTANT DURING SAID HEATING.
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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) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |