Patent US2466889A successfully refreshed from Google Patents.
Patent US2739873A successfully refreshed from Google Patents.
US2739873A
Expired / Lapsed
US
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Process for making ammonium perchlorate
Assignee: Western Electrochemical Co
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Filing: 1952-09-25
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Granted: 1956-03-27
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Expires: 1972-09-25
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Schumacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:07
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/24; C01B; C01B11/00; C01B11/16; C01B11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A CONTINUOUS PROCESS FOR MAKING AMMONIUM PERCHLORATE COMPRISING CONTINUOUSLY FEEDING IN AND REACTING LIQUID AMMONIA, AQUEOUS HYDROCHLORIC ACID AND AQUEOUS SODIUM PERCHLORTE SOLUTION IN A REACTION MASS CONSISTING OF A MOTHER LIQUOR CONTAINING ESENTIALLY SODIUM CHLORIDE AND AMMONIUM PERCHLORATE IN AQUEOUS SOLUTION, SAID REACTION BEING AT TEMPERATURES OF ABOUT 90* C.; CONTINUOUSLY REMOVING A STREAM OF SAID MOTHER LIQUOR WITH THE CONTAINED REACTION PRODUCTS FROM THE REACTION ZONE; COOLING SAID STREAM AND CONTINUOUSLY REMOVING WATER
Claim 2
Dependent Claim
75 words
A CONTINUOUS PROCESS FOR MAKING AMMONIUM PERCHLORATE COMPRISING CONTINUOUSLY FEEDING IN AND REACTING LIQUID AMMONIA, AQUEOUS HYDROCHLORIC ACID AND AQUEOUS SODIUM PERCHLORTE SOLUTION IN A REACTION MASS CONSISTING OF A MOTHER LIQUOR CONTAINING ESENTIALLY SODIUM CHLORIDE AND AMMONIUM PERCHLORATE IN AQUEOUS SOLUTION, SAID REACTION BEING AT TEMPERATURES OF ABOUT 90* C.; CONTINUOUSLY REMOVING A STREAM OF SAID MOTHER LIQUOR WITH THE CONTAINED REACTION PRODUCTS FROM THE REACTION ZONE; COOLING SAID STREAM AND CONTINUOUSLY REMOVING WATER
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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) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |