US2961465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkali metal derivatives of di-nu-substituted formamides
Assignee: Monsanto Chemicals Ltd
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Filing: 1957-06-11
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Granted: 1960-11-22
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Expires: 1977-06-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Leo L Contois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:16
CPC Classifications
C; C07; C07C; C07C233/00; Y; Y10; Y10S; Y10S106/00; Y10S106/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PROCESS FOR PREPARING A REACTION PRODUCT OF AN ALKALI METAL COMPOUND AND A DI-N-SUBSTITUTED FORMAMIDE WHICH CONSIST ESSENTIALLY OF AGITATING 1 MOL OF A COMPOUND TAKEN FROM THE GROUP CONSISTING OF AKLALI METALS AND ALKALI METAL AMIDES WITH AN ANHYDROUS ORGANIC SOLVENT SOLUTION CONTAINING AT LEAST 1 MOL OF A DI-N-SUBSTITUTED FORMAMIDE, AT A TEMPERATURE OF ABOUT 50-100* C.? SAID ALKALI METAL AMIDE CONFORMING TO THE FORMULA M-NH2 WHEREIN M IS AN ALKALI METAL ATOM, SAID DI-NSUBSTITUTED FORMAMIDE CONFORMING TO THE FORMULA:
Claim 2
Dependent Claim
83 words
A PROCESS FOR PREPARING A REACTION PRODUCT OF AN ALKALI METAL COMPOUND AND A DI-N-SUBSTITUTED FORMAMIDE WHICH CONSIST ESSENTIALLY OF AGITATING 1 MOL OF A COMPOUND TAKEN FROM THE GROUP CONSISTING OF AKLALI METALS AND ALKALI METAL AMIDES WITH AN ANHYDROUS ORGANIC SOLVENT SOLUTION CONTAINING AT LEAST 1 MOL OF A DI-N-SUBSTITUTED FORMAMIDE, AT A TEMPERATURE OF ABOUT 50-100* C.? SAID ALKALI METAL AMIDE CONFORMING TO THE FORMULA M-NH2 WHEREIN M IS AN ALKALI METAL ATOM, SAID DI-NSUBSTITUTED FORMAMIDE CONFORMING TO THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |