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Patent US3051651A successfully refreshed from Google Patents.
US3051651A
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Method of removing oxygen dissolved in water by means of anion exchange resins
Assignee: Bayer AG
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Filing: 1960-02-02
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Granted: 1962-08-28
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Expires: 1980-02-02
Abstract
No abstract record available.
Inventors
- 👤 Haagen Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:45
CPC Classifications
B; B01; B01J; B01J49/00; B01J49/50; B01J49/57; B01J41/00; B01J41/04; B01J41/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A METHOD OF REMOVING OXYGEN DISSOLVED IN WATER BY MEANS OF ANION EXCHANGE RESINS, WHICH COMPRISES CONDUCTING WATER CONTAINING DISSOLVED OXYGEN THROUGH AN ANION EXCHANGE RESIN CONTAINING BOTH WEAKLY BASIC AND STRONGLY BASIC FUNCTIONAL GROUPS AND THE STRONGLY BASIC GROUPS THEREOF BEING CHARGED WITH AN ANION SELECTED FROM THE GROUP CONSISTING OF DITHIONOUS ACID AND A REACTION PRODUCT OF DITHIONOUS ACID WITH AN ALDEHYDE.
Claim 2
Independent Claim
64 words
A METHOD OF REMOVING OXYGEN DISSOLVED IN WATER BY MEANS OF ANION EXCHANGE RESINS, WHICH COMPRISES CONDUCTING WATER CONTAINING DISSOLVED OXYGEN THROUGH AN ANION EXCHANGE RESIN CONTAINING BOTH WEAKLY BASIC AND STRONGLY BASIC FUNCTIONAL GROUPS AND THE STRONGLY BASIC GROUPS THEREOF BEING CHARGED WITH AN ANION SELECTED FROM THE GROUP CONSISTING OF DITHIONOUS ACID AND A REACTION PRODUCT OF DITHIONOUS ACID WITH AN ALDEHYDE.
References Cited (Backward Citations)
FR855849A
Cited
US2565354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |