Patent US2859215A successfully refreshed from Google Patents.
US2859215A
Expired / Lapsed
US
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Process for preparation of cyclonite
Assignee: —
•
Filing: —
•
Granted: 1958-11-04
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Expires: 1975-11-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:59
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR THE PREPARATION OF CYCLONITE WHICH COMPRISES MIXING CONCENTRATED NITRIC ACID WITH HEXAMETHYLENETETRAMINE IN RATIOS BETWEEN ABOUT 8:1 AND ABOUT 15:1 BY WEIGHT WHILE AGITATING THE MIXTURE AND MAINTAINING THE TEMPERATURE BETWEEN ABOUT -42*C. AND ABOUT -10*C., HEATING THE REACTION MIXTURE TO A TEMPERATURE FROM ABOUT 80*C. TO ABOUT 90*C., IMMEDIATELY ADDING AN EXCESS OF COLD WATER TO THE REACTION MIXTURE, AND SEPARATING THE CYCLONITE WHICH PRECIPITATES FROM THE MIXTURE.
Claim 2
Dependent Claim
72 words
A PROCESS FOR THE PREPARATION OF CYCLONITE WHICH COMPRISES MIXING CONCENTRATED NITRIC ACID WITH HEXAMETHYLENETETRAMINE IN RATIOS BETWEEN ABOUT 8:1 AND ABOUT 15:1 BY WEIGHT WHILE AGITATING THE MIXTURE AND MAINTAINING THE TEMPERATURE BETWEEN ABOUT -42*C. AND ABOUT -10*C., HEATING THE REACTION MIXTURE TO A TEMPERATURE FROM ABOUT 80*C. TO ABOUT 90*C., IMMEDIATELY ADDING AN EXCESS OF COLD WATER TO THE REACTION MIXTURE, AND SEPARATING THE CYCLONITE WHICH PRECIPITATES FROM THE MIXTURE.
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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |