US3315329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of chemical lace
Assignee: Kurashiki Rayon Co Ltd
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Filing: 1964-10-16
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Granted: 1967-04-25
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Expires: 1984-10-16
Abstract
No abstract record available.
Inventors
- 👤 Yoshioka Yoshihide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:23
CPC Classifications
D; D06; D06Q; D06Q1/00; D06Q1/02; C; C08; C08B; C08B13/00; C08B13/02; D01; D01F; D01F2/00; D01F2/06; D04; D04C; D04C1/00; D04C1/02; D04C1/04; D05; D05C; D05C17/00; Y; Y10; Y10S; Y10S8/00; Y10S8/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS FOR THE MANUFACTURE OF CHEMICAL LACE WHICH COMPRISES REACTING ALKALI CELLULOSE SIMULTANEOUSLY WITH MORE THAN 10% BY WEIGHT BASED ON THE CELLULOSE OF CARBON DISULFIDE AND MORE THAN 20% BY WEIGHT BASED ON THE CELLULOSE OF ACRYLONITRILE, DISSOLVING THE RESULTING REACTION PRODUCT IN DILUTE ALKALI SOLUTION TO FORM A VISCOSE, SPINNING FIBERS THEREFROM, MANUFACTURING FROM SAID FIBERS A BASE CLOTH, EMBROIDERING THE BASE CLOTH WITH A DIFFERENT FIBER INSOLUBLE IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF DILUTE ALKALI AND WATER TO FORM AN EMBROIDERED FABRIC, AND DIPPING THE EMBROIDERED FABRIC IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF DILUTE ALKALI AND WATER TO DISSOLVE THE BASE CLOTH.
Claim 2
Dependent Claim
112 words
A PROCESS FOR THE MANUFACTURE OF CHEMICAL LACE WHICH COMPRISES REACTING ALKALI CELLULOSE SIMULTANEOUSLY WITH MORE THAN 10% BY WEIGHT BASED ON THE CELLULOSE OF CARBON DISULFIDE AND MORE THAN 20% BY WEIGHT BASED ON THE CELLULOSE OF ACRYLONITRILE, DISSOLVING THE RESULTING REACTION PRODUCT IN DILUTE ALKALI SOLUTION TO FORM A VISCOSE, SPINNING FIBERS THEREFROM, MANUFACTURING FROM SAID FIBERS A BASE CLOTH, EMBROIDERING THE BASE CLOTH WITH A DIFFERENT FIBER INSOLUBLE IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF DILUTE ALKALI AND WATER TO FORM AN EMBROIDERED FABRIC, AND DIPPING THE EMBROIDERED FABRIC IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF DILUTE ALKALI AND WATER TO DISSOLVE THE BASE CLOTH.
References Cited (Backward Citations)
GB320528A
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GB525038A
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US2439865A
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US2499501A
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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) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |