US2671035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of ion-exchange materials for removal of scale deposits
Assignee: Phillips Petroleum Co
•
Filing: 1948-11-16
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Granted: 1954-03-02
•
Expires: 1968-11-16
Abstract
No abstract record available.
Inventors
- 👤 William E Bergman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:42
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS FOR THE REMOVAL OF INORGANIC SCALE DEPOSITS FROM EQUIPMENT WHICH COMPRISES CONTACTING AN INORGANIC SCALE WITH AN AQUEOUS SLURRY OF AN ION EXCHANGE MATERIAL AND THEREBY INSTITUTING ION EXCHANGE BETWEEN THE COMPONENTS OF SAID SCALE AND SAID EXCHAGNE MATERIAL, REMOVING THE TREATED SCALE MATERIAL IN SAID SLURRY, SEPARATING THE ION EXCHANGE MATERIAL FROM SAID SLURRY AND REGENERATING SAME, AND RECYCLING SAID REGENERATED ION EXCHANGE MATERIAL IN AN AQUEOUS SLURRY TO THE EQUIPMENT FROM WHICH SAID SCALE IS BEING REMOVED.
Claim 2
Dependent Claim
81 words
A PROCESS FOR THE REMOVAL OF INORGANIC SCALE DEPOSITS FROM EQUIPMENT WHICH COMPRISES CONTACTING AN INORGANIC SCALE WITH AN AQUEOUS SLURRY OF AN ION EXCHANGE MATERIAL AND THEREBY INSTITUTING ION EXCHANGE BETWEEN THE COMPONENTS OF SAID SCALE AND SAID EXCHAGNE MATERIAL, REMOVING THE TREATED SCALE MATERIAL IN SAID SLURRY, SEPARATING THE ION EXCHANGE MATERIAL FROM SAID SLURRY AND REGENERATING SAME, AND RECYCLING SAID REGENERATED ION EXCHANGE MATERIAL IN AN AQUEOUS SLURRY TO THE EQUIPMENT FROM WHICH SAID SCALE IS BEING REMOVED.
References Cited (Backward Citations)
US1049054A
Cited
US1392780A
Cited
US2004257A
Cited
US1965339A
Cited
US2294765A
Cited
US2372599A
Cited
US2395825A
Cited
US2382262A
Cited
US2373549A
Cited
US2556128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |