US2731460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing ammonia derivatives of polynitroalcohols
Assignee: Nitroglycerin AB
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Filing: 1952-07-03
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Granted: 1956-01-17
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Expires: 1972-07-03
Abstract
No abstract record available.
Inventors
- 👤 Schenck Friedrich Rudolf
- 👤 Wetterholm Gustav Allan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:52
CPC Classifications
C; C07; C07C; C07C243/00; C07C273/00; C07C273/18; C07C273/1854; C07C273/1863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE PROCESS WHICH COMPRISES REACTING, IN THE PRESENCE OF AN INERT SOLVENT, A POLYNITROALCOHOL, HAVING AT LEAST TO NITRO GROUPS ATTACHED TO ONE CARBON ATOM AND A PRIMARY HYDROXYL GROUP ATTACHED TO A SECOND CARBON ATOM ADJACENT TO THE AFORSAID CARBON ATOM, WITH A NITROGEN COMPOUND CONTAINING THE GROUP NH2- AND SELECTED FROM THE CLASS CONSISTING OF AMMONIA, PRIMARY AMINES, CARBOXYLIC ACID AMIDES AND HYDRAZINE, AND RECOVERING THE RESULTING POLYNITROAMINE COMPOUND.
Claim 2
Dependent Claim
71 words
THE PROCESS WHICH COMPRISES REACTING, IN THE PRESENCE OF AN INERT SOLVENT, A POLYNITROALCOHOL, HAVING AT LEAST TO NITRO GROUPS ATTACHED TO ONE CARBON ATOM AND A PRIMARY HYDROXYL GROUP ATTACHED TO A SECOND CARBON ATOM ADJACENT TO THE AFORSAID CARBON ATOM, WITH A NITROGEN COMPOUND CONTAINING THE GROUP NH2- AND SELECTED FROM THE CLASS CONSISTING OF AMMONIA, PRIMARY AMINES, CARBOXYLIC ACID AMIDES AND HYDRAZINE, AND RECOVERING THE RESULTING POLYNITROAMINE COMPOUND.
References Cited (Backward Citations)
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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) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |