US2877085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibiting thiol combination
Assignee: Veolia WTS USA Inc
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Filing: 1956-02-27
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Granted: 1959-03-10
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Expires: 1976-02-27
Abstract
No abstract record available.
Inventors
- 👤 Charles B George
- 👤 William A Tanzola
- 👤 Kahler Harry Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:12
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE PROCESS OF TREATING A COOLING WATER WHICH IS MAINTAINED IN CONTACT WITH METALLIC SURFACES TO INHIBIT CORROSION, WHICH COMPRISES ADDING TO THE WATER BETWEEN 0.5 AND 20 P. . M. OF THIOL OF THE CLASS CONSISTING OF 2BENZOTHIAZOLE THIOL, 2-PROPANER THIOL, BENZENE THIOL, AND SODIUM DIBUTYL DITHIO CARBAMATE, ADDING TO THE WATER BETWEEN 0.5 AND 20 P. P. M. CALCULATED AS ZINC ION OF WATER SOLUBLE ZINC COMPOUND, AND ADDING TO THE WATER BETWEEN 1 AND 100 P. P. M. CALCULATED AS PO4 OF WATER SOLUBLE POLYHOSPHATE COMPOUND, AND MAINTAINING IN THE WATER A PH IN THE RANGE BETWEEN 5 AND 8.5.
Claim 2
Dependent Claim
103 words
THE PROCESS OF TREATING A COOLING WATER WHICH IS MAINTAINED IN CONTACT WITH METALLIC SURFACES TO INHIBIT CORROSION, WHICH COMPRISES ADDING TO THE WATER BETWEEN 0.5 AND 20 P. . M. OF THIOL OF THE CLASS CONSISTING OF 2BENZOTHIAZOLE THIOL, 2-PROPANER THIOL, BENZENE THIOL, AND SODIUM DIBUTYL DITHIO CARBAMATE, ADDING TO THE WATER BETWEEN 0.5 AND 20 P. P. M. CALCULATED AS ZINC ION OF WATER SOLUBLE ZINC COMPOUND, AND ADDING TO THE WATER BETWEEN 1 AND 100 P. P. M. CALCULATED AS PO4 OF WATER SOLUBLE POLYHOSPHATE COMPOUND, AND MAINTAINING IN THE WATER A PH IN THE RANGE BETWEEN 5 AND 8.5.
References Cited (Backward Citations)
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US2194491A
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US2332209A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |