US2963439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibition
Assignee: Dow Chemical Co
•
Filing: 1958-04-18
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Granted: 1960-12-06
•
Expires: 1978-04-18
Abstract
No abstract record available.
Inventors
- 👤 John F Eberhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:34
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/04; Y; Y10; Y10S; Y10S507/00; Y10S507/933; Y10S507/934
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A METAL CORROSION INHIBITING COMPOSITION COMPRISING ONE PART BY VOLUME OF PROPARGYL SULFIDE AND FROM 0.25 TO 1.0 PART BY VOLUME OF A SULFUR-CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHANEDITHIOL, THIOLACETIC ACID, MERCAPTOACETIC ACID, ETHYL SULFIDE, HYDROGEN SULFIDE, AND FERROUS SULFIDE.
Claim 2
Dependent Claim
43 words
A METAL CORROSION INHIBITING COMPOSITION COMPRISING ONE PART BY VOLUME OF PROPARGYL SULFIDE AND FROM 0.25 TO 1.0 PART BY VOLUME OF A SULFUR-CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHANEDITHIOL, THIOLACETIC ACID, MERCAPTOACETIC ACID, ETHYL SULFIDE, HYDROGEN SULFIDE, AND FERROUS SULFIDE.
References Cited (Backward Citations)
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US2411791A
Cited
US2461359A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |