US3243462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing dimethylhydroxylamine
Assignee: Pennwalt Corp
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Filing: 1963-12-04
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Granted: 1966-03-29
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Herbert Q Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:52
CPC Classifications
C; C07; C07C; C07C239/00; C07C239/08; C07C239/10; C07C291/00; C07C291/02; C07C291/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS FOR THE PREPARATION OF DIMETHYLHYDROXYLAMINE WHICH CONSISTS OF OXIDIZING DIMETHYLAMINE WITH ESSENTIALLY STOICHIOMETRIC AMOUNTS OF HYDROGEN PEROXIDE IN THE PRESENCE OF ABOUT 0.5% TO ABOUT 10% BY WEIGHT OF THE AMINE OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF SODIUM VANADATE, POTASSIUM VANADATE, SELENIUM DIOXIDE, SODIUM SELENATE AND SELENIC ACID SAID PROCESS BEING CONDUCTED IN AN INERT SOLVENT AT A TEMPERATURE BETWEEN ABOUT -20* AND ABOUT 20*C.
Claim 2
Dependent Claim
70 words
A PROCESS FOR THE PREPARATION OF DIMETHYLHYDROXYLAMINE WHICH CONSISTS OF OXIDIZING DIMETHYLAMINE WITH ESSENTIALLY STOICHIOMETRIC AMOUNTS OF HYDROGEN PEROXIDE IN THE PRESENCE OF ABOUT 0.5% TO ABOUT 10% BY WEIGHT OF THE AMINE OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF SODIUM VANADATE, POTASSIUM VANADATE, SELENIUM DIOXIDE, SODIUM SELENATE AND SELENIC ACID SAID PROCESS BEING CONDUCTED IN AN INERT SOLVENT AT A TEMPERATURE BETWEEN ABOUT -20* AND ABOUT 20*C.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |