Patent US3311531A successfully refreshed from Google Patents.
US3311531A
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US
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Process of producing sulfate pulp with removal of offensively smelling gases
Assignee: Smurfit Kappa Nettingsdorf AG and Co KG
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Filing: 1963-06-06
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Granted: 1967-03-28
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Expires: 1983-06-06
Abstract
No abstract record available.
Inventors
- 👤 Feischl Othmar
- 👤 Knoll Friedrich
- 👤 Puschmann Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:09
CPC Classifications
D; D21; D21C; D21C11/00; D21C11/06; D21C11/08; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A PROCESS WHICH INVOLVES A FORMATION OF OFFENSIVELY SMELLING, OXIDIZING GASES AT A PLURALITY OF POINTS AT VARYING RATES AND CONCENTRATIONS, THE STEPS OF CONDUCTING SAID GASES FROM AT LEAST TWO OF SAID POINTS INTO A COMMON CONTAINER, MAINTAINING A BODY OF LIQUID IN SAID CONTAINER; ADMITTING SAID GASES FROM SAID POINTS TO SAID CONTAINER TO MIX IN SAID CONTAINER, FEEDING THE RESULTING GAS MIXTURE TO AN OXIDIZING STATION, CONTROLLING THE ADMISSION AND THE FEEDING OF SAID GASES TO EQUALIZE THE VARYING RATES AND CONCENTRATIONS OF THE GASES BY LOWERING AND RAISING THE LEVEL OF SAID BODY OF LIQUID IN SAID CONTAINER, AND OXIDIZING SAID GAS MIXTURE IN SAID OXIDIZING STATION.
Claim 2
Dependent Claim
112 words
IN A PROCESS WHICH INVOLVES A FORMATION OF OFFENSIVELY SMELLING, OXIDIZING GASES AT A PLURALITY OF POINTS AT VARYING RATES AND CONCENTRATIONS, THE STEPS OF CONDUCTING SAID GASES FROM AT LEAST TWO OF SAID POINTS INTO A COMMON CONTAINER, MAINTAINING A BODY OF LIQUID IN SAID CONTAINER; ADMITTING SAID GASES FROM SAID POINTS TO SAID CONTAINER TO MIX IN SAID CONTAINER, FEEDING THE RESULTING GAS MIXTURE TO AN OXIDIZING STATION, CONTROLLING THE ADMISSION AND THE FEEDING OF SAID GASES TO EQUALIZE THE VARYING RATES AND CONCENTRATIONS OF THE GASES BY LOWERING AND RAISING THE LEVEL OF SAID BODY OF LIQUID IN SAID CONTAINER, AND OXIDIZING SAID GAS MIXTURE IN SAID OXIDIZING STATION.
References Cited (Backward Citations)
US1854428A
Cited
US3183145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |