US2992065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing sulfur oxides from gases
Assignee: Reinluft GmbH
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Filing: 1959-06-24
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Granted: 1961-07-11
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Expires: 1979-06-24
Abstract
No abstract record available.
Inventors
- 👤 Feustel Klaus
- 👤 Johswich Friedrich
- 👤 Stratmann Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:42
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/48; C01B17/50; C01B17/60
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
A PROCESS FOR REMOVING SULFUR DIOXIDE AND SULFUR TRIOXIDE FROM A HOT GAS STREAM, COMPRISING THE STEPS OF CONTACTING SAID GAS STREAM WITH A CARBONACEOUS ADSORBENT AT A TEMPERATURE BETWEEN SUBSTANTIALLY 150* AND 250*C. TO ADSORB SULFUR TRIOXIDE THEREFROM, COOLING SAID GAS STREAM, CONTACTING SAID GAS STREAM WITH SAID ADSORBENT AT A TEMPERATURE BETWEEN SUBSTANTIALLY 100* AND 150*C. TO ADSORB SULFUR DIOXIDE THEREFROM, AND HEATING SAID ADSORBENT TO A TEMPERATURE SUFFICIENT TO REDUCE THE ADSORBED SULFUR TRIOXIDE TO SULFUR DIOXIDE AND TO PURGE SAID ADSORBENT OF SULFUR DIOXIDE.
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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |