Patent US2833022A successfully refreshed from Google Patents.
US2833022A
Expired / Lapsed
US
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Method of rendering fabrics water repellent
Assignee: Dow Silicones Corp
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Filing: 1953-03-16
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Granted: 1958-05-06
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Expires: 1973-03-16
Abstract
No abstract record available.
Inventors
- 👤 William R Collings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:41
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
THE METHOD OF RENDERING CELLULOSIC FABRICS WATER REPELLENT WHICH COMPRISES TREATING THE FABRICS WITH AN ORGANOSILICON COMPOSITION OF THE GROUP CONSISTING OF HYDROLYZABLE SILANES, ALKALI METAL SALTS OF ORGANOSILANOLS AND SILOXANES, SAID ORGANOSILICON COMPOSITION HAVING ON THE AVERAGE FROM 1 TO 2.5 MONOVALENT HYDROCARBON RADICALS PER SILICON ATOMS SUBJECTING THE FABRIC TO MECHANICAL TEMPERATURE OF AT LEAST 100*F. UNTIL THE ORGANOSILICON COMPOUND IS CURED.
Claim 2
Independent Claim
64 words
THE METHOD OF RENDERING CELLULOSIC FABRICS WATER REPELLENT WHICH COMPRISES TREATING THE FABRICS WITH AN ORGANOSILICON COMPOSITION OF THE GROUP CONSISTING OF HYDROLYZABLE SILANES, ALKALI METAL SALTS OF ORGANOSILANOLS AND SILOXANES, SAID ORGANOSILICON COMPOSITION HAVING ON THE AVERAGE FROM 1 TO 2.5 MONOVALENT HYDROCARBON RADICALS PER SILICON ATOMS SUBJECTING THE FABRIC TO MECHANICAL TEMPERATURE OF AT LEAST 100*F. UNTIL THE ORGANOSILICON COMPOUND IS CURED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |