US2910441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispersing agents and dispersions produced therewith
Assignee: Boehme Fettchemie GmbH
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Filing: 1954-11-02
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Granted: 1959-10-27
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Expires: 1974-11-02
Abstract
No abstract record available.
Inventors
- 👤 Heyden Rudi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:26
CPC Classifications
C; C14; C14C; C14C9/00; C14C9/02; C09; C09K; C09K23/00; C09K23/017; C09K23/42; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
AN AQUEOUS EMULSION STABLE WHEN DILUTED WITH AQUEOUS ELECTROLYTE SOLUTIONS COMPRSING ABOUT 2 PARTS OF A MIXTURE OF SODIUM ALKYL SULFATES CONTAINING 12 TO 18 CARBON ATOMS, ABOUT 40 PARTS OF A NATURAL FATTY OIL, ABOUT 53 PARTS OF WATER AND ABOUT 5 PARTS OF A CONDENSATE FORMED BY CONDENSING STEARYL ALCOHOL, PARAFORMALDEHYDE AND POLYETHYLENE OXIDE HAVING A MOLECULAR WEIGHT FROM ABOUT 4000 TO ABOUT 9300, IN A MOLAR RATIO OF ABOUT 2:2:1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |