US3083072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing starch size from cellulose fabric with aqueous alkaline medium containing alkali metal bromites, alkali metal hypobromites, or mixtures thereof
Assignee: D'ETUDES CHIMIQUES POUR L'INDUSTRIE ET L'AGRICULTURE Ste
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Filing: 1957-07-08
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Granted: 1963-03-26
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Expires: 1977-07-08
Abstract
No abstract record available.
Inventors
- 👤 Leclerc Jacqueline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:39
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/07; D06M11/30; D06L; D06L1/00; D06L1/12; D06L1/14; D06L4/00; D06L4/20; D06L4/22; D06L4/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A METHOD OF REMOVING STARCH SIZE FROM CELLULLOSE TEXTILE FABRIC COMPRISING OXIDIZING SAID SIZE ON SAID FABRIC IN AN AQUEOUS ALKALINE MEDIUM HAVING A PH VALUE OF AT LEAST ABOUT 9 WITH AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL BROMITES, ALKALI METAL HYPOBROMITES AND A MIXTURE OF BOTH FOR A SUFFICIENT TIME UNTIL STARCH IS REMOVED.
Claim 2
Independent Claim
60 words
A METHOD OF REMOVING STARCH SIZE FROM CELLULLOSE TEXTILE FABRIC COMPRISING OXIDIZING SAID SIZE ON SAID FABRIC IN AN AQUEOUS ALKALINE MEDIUM HAVING A PH VALUE OF AT LEAST ABOUT 9 WITH AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL BROMITES, ALKALI METAL HYPOBROMITES AND A MIXTURE OF BOTH FOR A SUFFICIENT TIME UNTIL STARCH IS REMOVED.
References Cited (Backward Citations)
US2253242A
Cited
GB549678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |