US2900381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of hmx from rdx
Assignee: EIDP Inc
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Filing: 1957-04-12
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Granted: 1959-08-18
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Expires: 1977-04-12
Abstract
No abstract record available.
Inventors
- 👤 Thatcher Donald Nixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:49
CPC Classifications
C; C07; C07D; C07D257/00; C07D257/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
IN THE PROCESS FOR THE SEPARATION OF CYCLOTETRAMETHYLENETETRANITRAMINE FROM ITS MIXTURES WITH CYCLOTRIMETHYLENETRINITRAMINE, THE IMPROVEMENT WHICH COMPRISES DISSOLVING A MIXTURE OF CYCLOTETRAMETHYLENETETRANITRAMINE AND CYCLOTRIMETHYLENETRINITRAMINE IN DIMETHYL SULFOXIDE AT A TEMPERATURE BETWEEN ABOUT 70 AND ABOUT 90* C. AND THEREAFTER ADDING WATER IN AN AMOUNT SUFFICIENT TO INITIATE THE PRECIPITATION OF SAID CYCLOTETRAMETHYLENETRANITRAMINE IN A CRYSTALLINE FORM CHARACTERIZED BY LOW SENSITIVITY TO IMPACT.
Claim 2
Dependent Claim
62 words
IN THE PROCESS FOR THE SEPARATION OF CYCLOTETRAMETHYLENETETRANITRAMINE FROM ITS MIXTURES WITH CYCLOTRIMETHYLENETRINITRAMINE, THE IMPROVEMENT WHICH COMPRISES DISSOLVING A MIXTURE OF CYCLOTETRAMETHYLENETETRANITRAMINE AND CYCLOTRIMETHYLENETRINITRAMINE IN DIMETHYL SULFOXIDE AT A TEMPERATURE BETWEEN ABOUT 70 AND ABOUT 90* C. AND THEREAFTER ADDING WATER IN AN AMOUNT SUFFICIENT TO INITIATE THE PRECIPITATION OF SAID CYCLOTETRAMETHYLENETRANITRAMINE IN A CRYSTALLINE FORM CHARACTERIZED BY LOW SENSITIVITY TO IMPACT.
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) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |