Patent US5586260A successfully refreshed from Google Patents.
Patent US2885435A successfully refreshed from Google Patents.
US2885435A
Expired / Lapsed
US
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Hydrolytic decyanoethylation of n, n-bis (2-cyanoethyl) amide compounds
Assignee: Dow Chemical Co
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Filing: 1956-08-13
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Granted: 1959-05-05
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Expires: 1976-08-13
Abstract
No abstract record available.
Inventors
- 👤 Laurence A Pursglove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:34
CPC Classifications
C; C07; C07C; C07C237/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
METHOD FOR THE HYDROLYTIC DECYANOETHYLATION OF AN N,N-BIS (2-CYANOETHYL) AMIDE COMPOUND HAVING THE GENERAL FORMULA: R-(G)-N(CH2CH2CN)2, WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL, HALOARYL AND NITROARYL RADICALS AND (G) IS SELECTED FROM THE GROUP CONSISTING OF THE BIVALENT -CO- AND -SO2- RADICALS IN ORDER TO PREPARE A HYDROLYZED PRODUCT SELECTED FROM THE GROUP CONSISTING OF N-SUBSTITUTED-B-CARBAMOYLETHYL AMIDE COMPOUNDS, N-SUBSTITUTED-B-ALANINE COMPOUNDS AND MIXTURES THEREOF, SAID PRODUCT COMPOUNDS BEING REPRESENTED RESPECTIVELY BY THE FORMULAE:
Claim 2
Dependent Claim
76 words
METHOD FOR THE HYDROLYTIC DECYANOETHYLATION OF AN N,N-BIS (2-CYANOETHYL) AMIDE COMPOUND HAVING THE GENERAL FORMULA: R-(G)-N(CH2CH2CN)2, WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL, HALOARYL AND NITROARYL RADICALS AND (G) IS SELECTED FROM THE GROUP CONSISTING OF THE BIVALENT -CO- AND -SO2- RADICALS IN ORDER TO PREPARE A HYDROLYZED PRODUCT SELECTED FROM THE GROUP CONSISTING OF N-SUBSTITUTED-B-CARBAMOYLETHYL AMIDE COMPOUNDS, N-SUBSTITUTED-B-ALANINE COMPOUNDS AND MIXTURES THEREOF, SAID PRODUCT COMPOUNDS BEING REPRESENTED RESPECTIVELY BY THE FORMULAE:
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) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |