Patent US2850531A successfully refreshed from Google Patents.
US2850531A
Expired / Lapsed
US
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Process for the preparation of cyclohexylhydroxylamine
Assignee: Abbott Laboratories
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Filing: 1955-02-14
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Granted: 1958-09-02
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Expires: 1975-02-14
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Weston
- 👤 James F Jeffries
- 👤 Adolph O Geiszler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:31
CPC Classifications
C; C07; C07D; C07D261/00; C07D261/02; C07D261/04; C07C; C07C209/00; C07C209/68; C07C209/82; C07C209/86; C07C211/00; C07C211/01; C07C211/26; C07C211/27; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
THE PROCESS OF MAKING CYCLOHEXYLHYDROXYLAMINE WHICH COMPRISES REDUCING ONE MOL OF NITROCYCLOHEXANE WITH AT LEAST ABOUT TWO MOLS OF ZINC IN A MILDLY ACIDIC AQUEOUS SOLUTION BETWEEN PH ABOUT 4 AND 7, OF A SALT OF A STRONG MINERAL ACID AND A WEAK BASE AT A TEMPERATURE BETWEEN ABOUT 0*C. AND 50*C. UNTIL ALL THE ZINC IS CONSUMED, AND SEPARATING THE CYCLOHEXYLHYDROXYLAMINE THUS FORMED.
Claim 2
Dependent Claim
64 words
THE PROCESS OF MAKING CYCLOHEXYLHYDROXYLAMINE WHICH COMPRISES REDUCING ONE MOL OF NITROCYCLOHEXANE WITH AT LEAST ABOUT TWO MOLS OF ZINC IN A MILDLY ACIDIC AQUEOUS SOLUTION BETWEEN PH ABOUT 4 AND 7, OF A SALT OF A STRONG MINERAL ACID AND A WEAK BASE AT A TEMPERATURE BETWEEN ABOUT 0*C. AND 50*C. UNTIL ALL THE ZINC IS CONSUMED, AND SEPARATING THE CYCLOHEXYLHYDROXYLAMINE THUS FORMED.
References Cited (Backward Citations)
US2310038A
Cited
US2423180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |