Patent US2634817A successfully refreshed from Google Patents.
US2634817A
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Method of separating hydrogen cyanide by adsorption
Assignee: Union Oil Company of California
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Filing: 1950-12-11
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Granted: 1953-04-14
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Expires: 1970-12-11
Abstract
No abstract record available.
Inventors
- 👤 Art C Mckinnis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:45
CPC Classifications
C; C01; C01C; C01C3/00; C01C3/02; C01C3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROCESS FOR THE RECOVERY OF HYDROGEN CYANIDE FROM GASEOUS MIXTURES WHICH COMPRISES CONTACTING A HYDROGEN CYANIDE-BEARING GAS WITH A MOVING STREAM OF SOLID GRANULAR ADSORBENT IN AN ADSORPTION ZONE FORMING A RICH ADSORBENT CONTAINING ADSORBED HYDROGEN CYANIDE LEAVING LESS READILY ADSORBABLE GASES SUBSTANTIALLY UNADSORBED AS A LEAN GAS, INTRODUCING AND MAINTAINING A MOISTURE CONTENT OF BETWEEN 0.1 AND 0.6 POUND OF MOISTURE PER POUND OF ADSORBENT ON
Claim 2
Dependent Claim
68 words
A PROCESS FOR THE RECOVERY OF HYDROGEN CYANIDE FROM GASEOUS MIXTURES WHICH COMPRISES CONTACTING A HYDROGEN CYANIDE-BEARING GAS WITH A MOVING STREAM OF SOLID GRANULAR ADSORBENT IN AN ADSORPTION ZONE FORMING A RICH ADSORBENT CONTAINING ADSORBED HYDROGEN CYANIDE LEAVING LESS READILY ADSORBABLE GASES SUBSTANTIALLY UNADSORBED AS A LEAN GAS, INTRODUCING AND MAINTAINING A MOISTURE CONTENT OF BETWEEN 0.1 AND 0.6 POUND OF MOISTURE PER POUND OF ADSORBENT ON
References Cited (Backward Citations)
US2519344A
Cited
US2519874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |