US3102003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of gases of dissociated ammonia
Assignee: Dow Chemical Co
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Filing: 1960-08-15
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Granted: 1963-08-27
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Expires: 1980-08-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph T Kummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:54
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/04; C01B3/047; C01B3/50; C01B3/508; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/36
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
A PROCESS FOR SEPARATING HYDRGEN GAS FROM DISSOCIATED AMMONIA COMPRISING THE STEPS OF DISSOCIATING AMMONIA, COOLING THE DISSOCIATED AMMONIA GASES TO LESS THAN 100*F., COMPRESSING THE COOL GASES, CHARGING THE COMPRESSED GASES INTO A PRESSURE ZONE CONTAINING AN ACTIVATED CHARCOAL BED MAINTAINED AT A PRESSURE OF ABOUT 100 P.S.I.G., AND AFTER A TIME INTERVAL OF AT LEASET 10 SECONDS RELEASING GAS FROM SAID PRESSURE ZONE AT A POINT DISTANT FROM THE CHARGING INLET UNTIL THE PRESSURE IN SAID PRESSURE ZONE IS REDUCED TO A RANGE BETWEEN 2 TO 20 P.S.I.G., AT THE BED, COLLECTING THE GAS RELEASED DURING THE PRESSURE REDUCTION, AND VACUUMIZING THE CHARCOAL BED TO THEREBY REACTIVATE IT.
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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |