US3215637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the protection of metals against the corrosive action of brines
Assignee: Solvay SA
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Filing: 1963-08-29
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Granted: 1965-11-02
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Expires: 1983-08-29
Abstract
No abstract record available.
Inventors
- 👤 Clerbois Lucien Camille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:29
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/18; C23F11/187
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS FOR THE PROTECTION OF METALS AND ALLOYS AGAINST THE CORROSIVE ACTION OF A MEMBER OF THE GROUP CONSISTING OF CALCIUM CHLORIDE BRINES AND SODIUM CHLORIDE BRINES, WHICH COMPRISES COMBINING WITH SAID BRINES FROM ABOUT 1 TO 2 GRAMS PER LITER OF SAID BRINES, OF AN INHIBITING MIXTURES CONSISTING ESSENTIALLY OF SODIUM SILICATE HAVING THE EMPIRICAL FORMULA NA2O3.3SIO2 AND ZINC CHLORIDE WHEREIN THE PROPORTION BY WEIGHT OF SODIUM SILICATE TO THE MIXTURE OF SODIUM SILICATE+ZINC CHLORIDE IS ABOUT 0.4 TO 0.7.
Claim 2
Dependent Claim
82 words
A PROCESS FOR THE PROTECTION OF METALS AND ALLOYS AGAINST THE CORROSIVE ACTION OF A MEMBER OF THE GROUP CONSISTING OF CALCIUM CHLORIDE BRINES AND SODIUM CHLORIDE BRINES, WHICH COMPRISES COMBINING WITH SAID BRINES FROM ABOUT 1 TO 2 GRAMS PER LITER OF SAID BRINES, OF AN INHIBITING MIXTURES CONSISTING ESSENTIALLY OF SODIUM SILICATE HAVING THE EMPIRICAL FORMULA NA2O3.3SIO2 AND ZINC CHLORIDE WHEREIN THE PROPORTION BY WEIGHT OF SODIUM SILICATE TO THE MIXTURE OF SODIUM SILICATE+ZINC CHLORIDE IS ABOUT 0.4 TO 0.7.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |