US2909240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorine recovery
Assignee: Scientific Design LLC
•
Filing: 1957-07-31
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Granted: 1959-10-20
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Expires: 1977-07-31
Abstract
No abstract record available.
Inventors
- 👤 Colton John White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:23
CPC Classifications
C; C01; C01B; C01B7/00; C01B7/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A PROCESS FOR THE RECOVERY OF CHLORINE FROM A CHLORINE-CONTAINING HYDROGEN CHLORIDE STREAM COMPRISING CONTACTING SAID CHLORINE-CONTAINING HYDROGEN CHLORIDE STREAM WITH AN AQUEOUS HYDROCHLORIC ACID SOLUTION OF AT LEAST AZEOTROPIC CONCENTRATION AND COOLING THE RESULTING GASEOUS EFFLUENT TO BELOW ABOUT 0*C, AND SEPARATING THE CHLORINE AS A RESULTING GASEOUS STREAM AND THE CONDENSATE AS A LIQUID STREAM.
Claim 2
Dependent Claim
57 words
A PROCESS FOR THE RECOVERY OF CHLORINE FROM A CHLORINE-CONTAINING HYDROGEN CHLORIDE STREAM COMPRISING CONTACTING SAID CHLORINE-CONTAINING HYDROGEN CHLORIDE STREAM WITH AN AQUEOUS HYDROCHLORIC ACID SOLUTION OF AT LEAST AZEOTROPIC CONCENTRATION AND COOLING THE RESULTING GASEOUS EFFLUENT TO BELOW ABOUT 0*C, AND SEPARATING THE CHLORINE AS A RESULTING GASEOUS STREAM AND THE CONDENSATE AS A LIQUID STREAM.
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) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |