US2918462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of amino-aldehydes
Assignee: CIBA PHARM PROD Inc
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Filing: 1957-01-14
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Granted: 1959-12-22
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Expires: 1977-01-14
Abstract
No abstract record available.
Inventors
- 👤 Druey Jean
- 👤 Huber Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:08
CPC Classifications
C; C07; C07H; C07H5/00; C07H5/04; C07H5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS FOR THE MANUFACTURE OF A MEMBER SELECTED FROM THE GROUP CONSISTING OG 2-AMINO-ALDOSES AND SALTS THEREOF WHICH COMPRISES REACTING A 1-AMINO-2-KETOSE WITH A MEMBER SELECTED FROM THE CONSISTING OF AMMONIA AND A HYDROCARBON AMINE HAVING AT LEAST ONE HYDROGEN ATOM, HYDROLYZING THE RESULTING 1-AMINO COMPOUND AND ISOLATING A MEMBER SELECTED FROM THE GROUP CONSISTING OF THE CORRESPONDING 2-AMINO-ALDOSE AND SALTS THEREOF.
Claim 2
Dependent Claim
63 words
A PROCESS FOR THE MANUFACTURE OF A MEMBER SELECTED FROM THE GROUP CONSISTING OG 2-AMINO-ALDOSES AND SALTS THEREOF WHICH COMPRISES REACTING A 1-AMINO-2-KETOSE WITH A MEMBER SELECTED FROM THE CONSISTING OF AMMONIA AND A HYDROCARBON AMINE HAVING AT LEAST ONE HYDROGEN ATOM, HYDROLYZING THE RESULTING 1-AMINO COMPOUND AND ISOLATING A MEMBER SELECTED FROM THE GROUP CONSISTING OF THE CORRESPONDING 2-AMINO-ALDOSE AND SALTS THEREOF.
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) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |