US2590073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amide derivatives and process of making same
Assignee: BASF Schweiz AG
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Filing: 1948-02-17
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Granted: 1952-03-25
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Expires: 1968-02-17
Abstract
No abstract record available.
Inventors
- 👤 Albrecht Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:49
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
30 words
A PROCESS FOR THE MANUFACTURE OF A NEW AMIDE DERIVATIVE WHICH COMPRISES ADDING AT LEAST ONE MOL OF AN ALKYLENE OXIDE TO AN N-ACYLATED AMINO METHYL ETHER OF THE FORMULA
Claim 2
Dependent Claim
30 words
A PROCESS FOR THE MANUFACTURE OF A NEW AMIDE DERIVATIVE WHICH COMPRISES ADDING AT LEAST ONE MOL OF AN ALKYLENE OXIDE TO AN N-ACYLATED AMINO METHYL ETHER OF THE FORMULA
Claim 3
Dependent Claim
6 words
A PRODUCT OF THE GENERAL FORMULA
Claim 4
Dependent Claim
6 words
A PRODUCT OF THE GENERAL 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) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |