US3097065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for recovery of ammonia from coke oven gas as ammonium chloride and ammonium sulfate
Assignee: Beazer East Inc
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Filing: 1957-05-17
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Granted: 1963-07-09
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Expires: 1977-05-17
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Gollmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:35
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/16; C01C1/164; C01C1/24; C01C1/242
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
46 words
A PROCESS FOR THE RECOVERY OF AMMONIA FROM COKE OVEN GAS AS AMMONIUM CHLORIDE WHICH COMPRISES CONTACTING SAID GAS WITH A SOLUTION SATURATED AS TO ITS CONTENT OF AMMONIUM CHLORIDE, CONTAINING 10-15% PERCENT OF AMMONIUM PHOSPHATE, AND MAINTAINED AT A PH VALUE SLIGHTLY LOWER THAN 7.5.
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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |