US3192196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of aliphatic hydrazo compounds to the corresponding aliphatic azo compounds
Assignee: US Filter Wallace and Tiernan Inc
•
Filing: 1962-11-27
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Granted: 1965-06-29
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Expires: 1982-11-27
Abstract
No abstract record available.
Inventors
- 👤 Frederick D Vidal
- 👤 Vincent G Sarli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:13
CPC Classifications
C; C09; C09B; C09B27/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A METHOD OF OXIDIZING AN ALIPHATIC HYDRAZO COMPOUND TO THE CORRESPONDING ALIPHATIC AZO COMPOUND WHICH COMPRISES CONTACTING SAID HYDRAZO COMPOUND AT A TEMPERATURE IN THE RANGE 0-150*C. WITH A GASEOUS MIXTURE CONTAINING ELEMENTAL OXYGEN AND NITROGEN DIOXIDE TO EFFECT OXIDATION OF THE HYDRAZO COMPOUND TO SAID CORRESPONDING AZO COMPOUND, SAID ELEMENTAL OXYGEN BEING SUPPLIED IN AT LEAST A STOICHIOMETRIC AMOUNT RELATIVE TO THE AMOUNT OF SAID HYDRAZO COMPOUND TO BE OXIDIZED.
Claim 2
Independent Claim
71 words
A METHOD OF OXIDIZING AN ALIPHATIC HYDRAZO COMPOUND TO THE CORRESPONDING ALIPHATIC AZO COMPOUND WHICH COMPRISES CONTACTING SAID HYDRAZO COMPOUND AT A TEMPERATURE IN THE RANGE 0-150*C. WITH A GASEOUS MIXTURE CONTAINING ELEMENTAL OXYGEN AND NITROGEN DIOXIDE TO EFFECT OXIDATION OF THE HYDRAZO COMPOUND TO SAID CORRESPONDING AZO COMPOUND, SAID ELEMENTAL OXYGEN BEING SUPPLIED IN AT LEAST A STOICHIOMETRIC AMOUNT RELATIVE TO THE AMOUNT OF SAID HYDRAZO COMPOUND TO BE OXIDIZED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |