Patent US3976076A successfully refreshed from Google Patents.
Patent US2967587A successfully refreshed from Google Patents.
US2967587A
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Process and apparatus for dry-process adsorption of hydrogen sulfide from coke-oven gases
Assignee: Didier Werke AG
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Filing: 1958-03-25
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Granted: 1961-01-10
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Expires: 1978-03-25
Abstract
No abstract record available.
Inventors
- 👤 Steding Arthur
- 👤 Muller Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:15
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; C; C10; C10K; C10K1/00; C10K1/20; B01D2257/00; B01D2257/10; B01D2257/104; B01D2257/30; B01D2257/304; B01D2259/00; B01D2259/40; B01D2259/406; B01D2259/4061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS FOR ENRICHING AN ADSORBENT WITH HYDROGEN SULFIDE, COMPRISING THE STEPS OF FIRST PLACING SAID ADSORBENT IN CONTACT WITH AN ILLUMINATING GAS OF RELATIVELY LOW H2S CONTENT AND THEREAFTER CONTACTING SAID ADSORBENT WITH A FURNACE DRAFT GAS OF RELATIVELY HIGH H2S CONTENT, SAID ADSORBENT BEING FIRST PLACED IN A DOWNSTREAM POSITION OF A STREAM OF SAID ILLUMINATING GAS, THEN TRANSFERRED TO AN UPSTREAM POSITION OF THE SAME GAS STREAM, THEREAFTER PLACED IN A DOWNSTREAM POSITION OF A STREAM OF SAID
Claim 2
Dependent Claim
81 words
A PROCESS FOR ENRICHING AN ADSORBENT WITH HYDROGEN SULFIDE, COMPRISING THE STEPS OF FIRST PLACING SAID ADSORBENT IN CONTACT WITH AN ILLUMINATING GAS OF RELATIVELY LOW H2S CONTENT AND THEREAFTER CONTACTING SAID ADSORBENT WITH A FURNACE DRAFT GAS OF RELATIVELY HIGH H2S CONTENT, SAID ADSORBENT BEING FIRST PLACED IN A DOWNSTREAM POSITION OF A STREAM OF SAID ILLUMINATING GAS, THEN TRANSFERRED TO AN UPSTREAM POSITION OF THE SAME GAS STREAM, THEREAFTER PLACED IN A DOWNSTREAM POSITION OF A STREAM OF SAID
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) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |