US3006934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the purification of darkcolored raw fatty acid amides
Assignee: Dehydag Deutsche Hydrierwerke GmbH
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Filing: 1959-02-17
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Granted: 1961-10-31
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Expires: 1979-02-17
Abstract
No abstract record available.
Inventors
- 👤 Dieckelmann Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:26
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/02; C07C233/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A PROCESS FOR THE PURIFICATION OF A RAW, DARK COLORED FATTY ACID AMIDE MATERIAL, WHICH COMPRISES TREATING SAID FATTY ACID AMIDE MATERIAL IN THE MOLTEN STATE WITH AN OXYGEN YIELDING AGENT SELECTED FROM THE GROUP CONSISTING OF HYDROGEN PEROXIDE AND ADDUCTS THEREOF, PERBORATES, PERCARBONATES, PERFORMIC ACID, AND PERACETIC ACID AT A TEMPERATURE BETWEEN ABOUT 100*C. AND A TEMPERATURE ABOUT 20*C. ABOVE THE MELTING POINT OF SAID MATERIAL, ACCOMPANIED BY STIRRING OF THE MOLTEN MATERIAL.
Claim 2
Dependent Claim
74 words
A PROCESS FOR THE PURIFICATION OF A RAW, DARK COLORED FATTY ACID AMIDE MATERIAL, WHICH COMPRISES TREATING SAID FATTY ACID AMIDE MATERIAL IN THE MOLTEN STATE WITH AN OXYGEN YIELDING AGENT SELECTED FROM THE GROUP CONSISTING OF HYDROGEN PEROXIDE AND ADDUCTS THEREOF, PERBORATES, PERCARBONATES, PERFORMIC ACID, AND PERACETIC ACID AT A TEMPERATURE BETWEEN ABOUT 100*C. AND A TEMPERATURE ABOUT 20*C. ABOVE THE MELTING POINT OF SAID MATERIAL, ACCOMPANIED BY STIRRING OF THE MOLTEN MATERIAL.
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) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |