Patent US3832228A successfully refreshed from Google Patents.
US3832228A
Expired / Lapsed
US
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Process for rendering keratinous fibers resistant to shrinkage
Assignee: Dow Silicones UK Ltd
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Filing: 1972-08-25
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Granted: 1974-08-27
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Expires: 1992-08-25
Abstract
Abstract PROCESS FOR TREATING KERATINOUS FIBERS WITH ONE OR MORE ORGANOPOSYSILOXANES HAVING IN THE MOLECULE ORGANIC SUBSTITUENTS CONTAINING BOTH IMINO AND AMINO RADICALS. THE PROCESS FINDS APPLICATION IN RENDERING WOOL AND OTHER KERATINOUS FIBERS RESISTANT TO SHRINKAGE ON LAUNDERING.
Inventors
- 👤 W Gardiner
- 👤 F Saunders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:23
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643
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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |