US3658456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scarcely dusting composition consisting of ice-color coupling component and an ethylene oxide addition product
Assignee: Hoechst AG
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Filing: 1969-12-09
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Granted: 1972-04-25
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Expires: 1989-12-09
Abstract
Abstract Scarcely dusting ice color coupling components are obtained by admixture of 0.5 to 15 percent by weight of an addition product of 2 to 5 mols of ethylene oxide to a lower alkanol, the resulting polyether having a molecular weight of about 150 to about 280. Optionally surfactants, complex-forming agents and inorganic salts are added.
Inventors
- 👤 Hasso Hertel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:43
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/02; D06P1/12; C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0079; C09B67/0092; C09B67/0094
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
The composition as claimed in claim 1, containing additionally an inorganic salt.
Claim 2
Dependent Claim
21 words
The composition as claimed in claim 1, containing additionally an alkali metal salt of a mineral acid or of carbonic acid.
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |