US3669902A
Expired / Lapsed
US
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Dicyclohexylthiourea corrosion inhibitor composition
Assignee: Abbott Laboratories
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Filing: 1970-09-22
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Granted: 1972-06-13
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Expires: 1990-09-22
Abstract
Abstract Dicyclohexylthiourea can be provided in a liquid composition ready for addition to an acid bath as a corrosion inhibitor. The highly insoluble dicyclohexylthiourea is compounded for this purpose with dimethylacetamide and a specific wetting agent.
Inventors
- 👤 Robert Eugene Hirner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:20
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/02; C23G1/04; C23G1/06; C08; C08K; C08K5/00; C08K5/16; C08K5/21; C08K5/36; C08K5/39; C08K5/405; C23F; C23F11/00; C23F11/04; Y; Y10; Y10S; Y10S507/00; Y10S507/933; Y10S507/934
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
19 words
The composition of claim 1 wherein said condensation product averages between 7 and 8 ethylene oxide groups per molecule.
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |