US3565845A
Expired / Lapsed
US
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Siloxane-polyoxyalkylene block copolymers containing methoxysiloxy groups
Assignee: Union Carbide Corp
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Filing: 1968-09-18
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Granted: 1971-02-23
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Expires: 1988-09-18
Abstract
Abstract THIS INVENTION RELATES TO NOVEL SILOXANE-POLYOXYLAKYLENE BLOCK COPOLYMERS CONTAINING METHOXYSILOXY GROUPS. THE NOVEL BLOCK COPOLYMERS AR PARTICULARLY USEFUL IN THE TREATMENT OF FIBROUS MATERIALS (E.G. SYNTHETIC OR NATURAL ORGANIC TEXTILE FIBERS OR FIBROUS GLASS) TO IMPROVE THE PROPERTIES (E.G., SOIL RELEASE) OF THE FIBROUS MATERIALS.
Inventors
- 👤 Gordon C Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:05
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/647; C; C08; C08G; C08G77/00; C08G77/42; C08G77/46; C10; C10M; C10M3/00; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/20
Claims Analysis
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |