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US2838423A
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Amidomethyl quaternary ammonium siloxanes and a method of rendering fabrics water repllent therewith
Assignee: Dow Silicones Corp
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Filing: 1957-05-29
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Granted: 1958-06-10
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Expires: 1977-05-29
Abstract
No abstract record available.
Inventors
- 👤 John W Giikey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:03
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/6436; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C08; C08G; C08G77/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31688; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/218
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
25 words
A METHOD OF RENDERING FABRICS WATER REPELLENT WHICH COMPRISES APPLYING TO THE FABRIC A COPOLYMERIC SILOXANE COMPRISING ESSENTIALLY OF FROM .1 TO 90 MOL PERCENT
References Cited (Backward Citations)
US2637623A
Cited
US2723987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |