US3115490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
H smith
Assignee: —
•
Filing: —
•
Granted: 1963-12-24
•
Expires: 1980-12-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:54
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/02; C08G73/028; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/16; C07D203/18; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; C07F9/28; C07F9/38; C07F9/44; C07F9/547; C07F9/553; C07F9/564
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
THE PROCESS FOR PREPARING ACID UNSTABLE 1,2-ALKYLENE CARBOXAMIDES WHICH COMPRISES REACTING AN AQUEOUS SOLUTION OF 1,2-ALKYLENE IMINE OF THE FROMULA
Claim 2
Dependent Claim
20 words
THE PROCESS FOR PREPARING ACID UNSTABLE 1,2-ALKYLENE CARBOXAMIDES WHICH COMPRISES REACTING AN AQUEOUS SOLUTION OF 1,2-ALKYLENE IMINE OF THE FROMULA
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2708617A
Cited
US2606900A
Cited
US2802823A
Cited
US2830045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |