Patent US3716518A successfully refreshed from Google Patents.
US3716518A
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Siloxane polymers for soil-repellent and soil-release textile finishes
Assignee: United States Department of Agriculture
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Filing: 1972-03-02
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Granted: 1973-02-13
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Expires: 1992-03-02
Abstract
Abstract FLUOROCARBON SILANES ARE COPOLYMERIZED WITH SILANES WHICH CONTAIN TWO OR MORE ALKYLENEOXY GROUPS. THE COPOLYMERS ARE USEFUL FOR APPLICATION TO FIBROUS MATERIALS TO PROVIDE BOTH SOIL REPELLENCY AND SOIL RELEASABILITY.
Inventors
- 👤 Allen G Pittman
- 👤 William L Wasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:21
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/647; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0896; C07F7/12; C08; C08G; C08G77/00; C08G77/04; C08G77/06; C08G77/14; C08G77/22; C08G77/24; C08G77/42; C08G77/46; C08G77/48; D06M13/00; D06M13/50; D06M13/51; D06M13/513; D06M15/657; Y; Y10; Y10S; Y10S428/00; Y10S428/912; Y10S428/913; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T442/00; Y10T442/20; Y10T442/2279
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |