US2992138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulosic textile treating composition and process
Assignee: EIDP Inc
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Filing: 1958-04-17
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Granted: 1961-07-11
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Expires: 1978-04-17
Abstract
No abstract record available.
Inventors
- 👤 Osborne C Bacon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:47
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
151 words
IN THE PROCESS OF TREATING CELLULOSIC TEXTILES WITH A FABRIC STABILIZER TAKEN FROM THE GROUP CONSISTING OF DIMETHYLOLETHYLENEUREA AND A MIXTURE OF DIMETHYLOLETHYLENEUREA AND TETRAMETHYLOLUREA, SAID MIXTURE COMPRISING AT LEAST 20% BY WEIGHT OF THE MIXTURE OF DIMETHYLOLETHYLENEUREA, THE IMPROVEMENT WHICH CONSISTS OF PADDING THE TEXTILE WITH A PAD BATH CONTAINING FROM ABOUT 2 TO ABOUT 10% BY WEIGHT OF THE BATH OF THE FABRIC STABILIZER, 0.25% TO 2.0% BY WEIGHT OF ZINC NITRATE AND .05% TO 2.0% BY WEIGHT OF SODIUM ACETATE, AND WITHIN 24 HOURS AFTER CURING THE FABRIC AT 300*F. TO 400*F. FOR 0.5 TO 10 MINUTES, NEUTRALIZING THE FABRIC BY WASHING IT WITH AN AQUEOUS ALKALINE SOLUTION UNTIL THE EQUILIBRIUM PH OF THE WASHING SOLUTION CONTAINING THE TEXTILE IS BETWEEN ABOUT 8.0 AND 11.0 FOLLOWED BY RINSING THE NEUTRALIZED FABRIC UNTIL THE EQUILIBRIUM PH OF THE RINSING SOLUTION CONTAINING THE FABRIC IS BETWEEN ABOUT 7.0 AND 8.0.
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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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |