US2815328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibitor composition for aqueous liquids
Assignee: ChampionX LLC
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Filing: 1955-02-25
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Granted: 1957-12-03
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Expires: 1975-02-25
Abstract
No abstract record available.
Inventors
- 👤 Green Jerome
- 👤 David B Boies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:46
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A CORROSION INHIBITOR COMPOSITION FOR AQUEOUS LIQUIDS COMPRISING IN PERCENTAGES BY WEIGHT A CORROSION INHIBITING AMOUNT UP TO ABOUT 15% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MERCAPTOBENZOTHIAZOLE AND ALKALI METAL SALTS THEREOF, ABOUT 1+15% OF AN ALKALI METAL SILICATE CALCULATED AS THE METASILICATE PENTAHYDRATE, ABOUT 4-40% OF AN ALKALI METAL NITRITE, ABOUT 4-40% OF AN ALKALI METAL NITRATE, ABOUT 10-85% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID AND ALKALI METAL BORATES, THE LATTER BEING CALCULATED AS THE TETRABORATE PENTAHYDRATE, AND AN AMOUNT OF A BASE SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL HYDROXIDES, CARBONATES AND BICARBONATES SUFFICIENT TO PROVIDE A PH OF ABOUT 8.5-10 IN A AQUEOUS SOLUTION OF SAID COMPOSITION.
Claim 2
Dependent Claim
120 words
A CORROSION INHIBITOR COMPOSITION FOR AQUEOUS LIQUIDS COMPRISING IN PERCENTAGES BY WEIGHT A CORROSION INHIBITING AMOUNT UP TO ABOUT 15% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MERCAPTOBENZOTHIAZOLE AND ALKALI METAL SALTS THEREOF, ABOUT 1+15% OF AN ALKALI METAL SILICATE CALCULATED AS THE METASILICATE PENTAHYDRATE, ABOUT 4-40% OF AN ALKALI METAL NITRITE, ABOUT 4-40% OF AN ALKALI METAL NITRATE, ABOUT 10-85% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID AND ALKALI METAL BORATES, THE LATTER BEING CALCULATED AS THE TETRABORATE PENTAHYDRATE, AND AN AMOUNT OF A BASE SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL HYDROXIDES, CARBONATES AND BICARBONATES SUFFICIENT TO PROVIDE A PH OF ABOUT 8.5-10 IN A AQUEOUS SOLUTION OF SAID COMPOSITION.
References Cited (Backward Citations)
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US2264389A
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US2349338A
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US2373570A
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US2411676A
Cited
US2534030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |