US3669702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone emulsions
Assignee: Dr Th Boehme KG Chemie Fabrik GmbH and Co
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Filing: 1970-05-07
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Granted: 1972-06-13
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Expires: 1990-05-07
Abstract
Abstract AN AQUEOUS SILICONE EMULSION FOR TREATING FIBROUS MATERIALS, CONTAINING AN OILY POLYSILOXANE AND AS AN EMULSIFYING AGENT A PARTIALLY-REACTED POLYMERIC COMPOUND WHICH CONTAINS HYDROGEN ATOMS ATTACHED TO AMINONITROGEN ATOMS AND HALOHYDRIN GROUPS, THE RATIO OF SAID HYDROGEN ATOMS TO SAID HALOHYDRIN GROUPS FROM 1:06 TO 1:1.5, AS WELL AS HIGH-MOLECULAR-WEIGHT LIPOPHILIC RADICALS AND/OR POLYSILOXANE RADICALS.
Inventors
- 👤 Ulrich Rall
- 👤 Herbert Frotscher
- 👤 Manfred Petzold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:24
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/26
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |