US2527141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of cotton fabrics with urea-alkali-zincate solution
Assignee: United Merchants and Manuf Inc
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Filing: 1949-05-10
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Granted: 1950-10-24
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Expires: 1969-05-10
Abstract
No abstract record available.
Inventors
- 👤 Charles L Mantell
- 👤 Oscar K Heim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:38
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/32; D06M11/36; D06M11/44; D06M11/38; D06M11/46; D06M13/00; D06M13/322; D06M13/402; D06M13/432
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
PROCESS OF MODIFYING COTTON FABRIC WHICH INCLUDES THE STEPS OF TREATING THE SAME WITH AN AQUEOUS SOLUTION COMPRISING FROM ABOUT 2 TO ABOUT 20% BY WEIGHT OF UREA, AN ALKALI METAL ZINCATE SELECTED FROM THE CLASS CONSISTING OF SODIUM ZINCATE AND POTASSIUM ZINCATE IN AN AMOUNT EQUIVALENT TO FROM ABOUT 2 TO ABOUT 10% BY WEIGHT OF ZINC OXIDE, FROM ABOUT 6 TO ABOUT 28% BY WEIGHT OF ALKALI METAL HYDROXIDE SELECTED FROM THE CLASS CONSISTING OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE, AND THE BALANCE WATER, FOR A TIME RANGING FROM ABOUT 1 SECOND TO ABOUT 24 HOURS, DRYING THE TREATED FABRIC WHILE UNDER TENSION, NEUTRALIZING THE SAME AND THEREAFTER RINSING THE FABRIC.
Claim 2
Dependent Claim
113 words
PROCESS OF MODIFYING COTTON FABRIC WHICH INCLUDES THE STEPS OF TREATING THE SAME WITH AN AQUEOUS SOLUTION COMPRISING FROM ABOUT 2 TO ABOUT 20% BY WEIGHT OF UREA, AN ALKALI METAL ZINCATE SELECTED FROM THE CLASS CONSISTING OF SODIUM ZINCATE AND POTASSIUM ZINCATE IN AN AMOUNT EQUIVALENT TO FROM ABOUT 2 TO ABOUT 10% BY WEIGHT OF ZINC OXIDE, FROM ABOUT 6 TO ABOUT 28% BY WEIGHT OF ALKALI METAL HYDROXIDE SELECTED FROM THE CLASS CONSISTING OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE, AND THE BALANCE WATER, FOR A TIME RANGING FROM ABOUT 1 SECOND TO ABOUT 24 HOURS, DRYING THE TREATED FABRIC WHILE UNDER TENSION, NEUTRALIZING THE SAME AND THEREAFTER RINSING THE FABRIC.
References Cited (Backward Citations)
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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) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |