US2652409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxyalkylation of the amides of secondary amines
Assignee: Baker Petrolite LLC
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Filing: 1951-10-17
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Granted: 1953-09-15
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Expires: 1971-10-17
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:29
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
THE PROCESS OF RENDERING WATER-INSOLUBLE AMIDES WATER-DISPERSIBLE BY REACTION WITH AN ALKYLENE OXIDE; SAID WATER-INSOLUBLE AMIDE, PRIOR TO OXYALKYLATION, BEING OF THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
24 words
THE PROCESS OF RENDERING WATER-INSOLUBLE AMIDES WATER-DISPERSIBLE BY REACTION WITH AN ALKYLENE OXIDE; SAID WATER-INSOLUBLE AMIDE, PRIOR TO OXYALKYLATION, BEING OF THE FOLLOWING FORMULA:
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) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |