US3165753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of 1-alkyl-3, 5-dinitro-1, 2, 4-triazole
Assignee: Individual
•
Filing: 1957-05-03
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Granted: 1965-01-12
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Expires: 1977-05-03
Abstract
No abstract record available.
Inventors
- 👤 Smith Newton Rosser
- 👤 Wiley Richard Haven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:58
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/04; C07; C07D; C07D249/00; C07D249/02; C07D249/08; C07D249/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE PROCESS FOR THE PREPARATION OF 1-ALKYL-2-5-DINITRO-1,2,4-TRIAZOLES IN WHICH THE ALKYL GROUP IS A FEWER ALKYL GROUP WHICH COMPRISES ADDING GUANAZINE DROPWISE TO A COPPER NITRATE SOLUTION AT A TEMPERATURE BETWEEN ABOUT 90 TO 95*C., STIRRING THE RESULTING SOLUTION FOR ABOUT 1 TO 2 HOURS AT ABOUT 90 TO 100*C., FILTERING THE SOLUTION, ACIDIFYING THE FILTRATE WITH CONCENTRATED NITRIC ACID, EXTRACTING THE FILTRATE WITH ETHER, EXTRACTING THE ETHER EXTRACT WITH A SLURRY OF SODIUM BICARBONATE, AND ADDING TO THE FINAL EXTRACT A SLIGHT EXCESS OF A DIALKYL SULPHATE IN WHICH THE ALKYL GROUPS ARE LOWER ALKYL GROUPS.
Claim 2
Dependent Claim
97 words
THE PROCESS FOR THE PREPARATION OF 1-ALKYL-2-5-DINITRO-1,2,4-TRIAZOLES IN WHICH THE ALKYL GROUP IS A FEWER ALKYL GROUP WHICH COMPRISES ADDING GUANAZINE DROPWISE TO A COPPER NITRATE SOLUTION AT A TEMPERATURE BETWEEN ABOUT 90 TO 95*C., STIRRING THE RESULTING SOLUTION FOR ABOUT 1 TO 2 HOURS AT ABOUT 90 TO 100*C., FILTERING THE SOLUTION, ACIDIFYING THE FILTRATE WITH CONCENTRATED NITRIC ACID, EXTRACTING THE FILTRATE WITH ETHER, EXTRACTING THE ETHER EXTRACT WITH A SLURRY OF SODIUM BICARBONATE, AND ADDING TO THE FINAL EXTRACT A SLIGHT EXCESS OF A DIALKYL SULPHATE IN WHICH THE ALKYL GROUPS ARE LOWER ALKYL GROUPS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-12 | 1968-07-13 | 1969-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-12 | 1972-07-13 | 1973-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-12 | 1976-07-13 | 1977-01-12 | $7700.00 | Window Closed / Lapsed |