Patent US3140260A successfully refreshed from Google Patents.
US3140260A
Expired / Lapsed
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Corrosion inhibition
Assignee: Dow Chemical Co
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Filing: 1959-01-08
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Granted: 1964-07-07
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Expires: 1979-01-08
Abstract
No abstract record available.
Inventors
- 👤 Gerald L Foster
- 👤 Billy D Oakes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:00
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/02; C23G1/04; C23G1/06; C23F; C23F11/00; C23F11/08; C23F11/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
45 words
A CORROSION INHIBITING COMPOSITION COMPRISING A DIALKYNYL SULFIDE HAVING FROM 3 TO 6 CARBON ATOMS IN EACH ALKYNYL RADICAL AND FROM 0.012 TO 0.75 PART BY VOLUME BASED ON SAID SULFIDE OF A SURFACE-ACTIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF ANIONIC AND NON-IONIC AGENTS.
Claim 2
Dependent Claim
45 words
A CORROSION INHIBITING COMPOSITION COMPRISING A DIALKYNYL SULFIDE HAVING FROM 3 TO 6 CARBON ATOMS IN EACH ALKYNYL RADICAL AND FROM 0.012 TO 0.75 PART BY VOLUME BASED ON SAID SULFIDE OF A SURFACE-ACTIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF ANIONIC AND NON-IONIC AGENTS.
Claim 3
Dependent Claim
39 words
A CORRISION INHIBITING COMPOSITION COMPRISING A DIALKYNYL SULFIDE HAVING FROM 3 TO 6 CARBON ATOMS IN EACH ALKYNYL RADICAL AND FROM 0.25 TO 1 PART BY VOLUME BASED ON SAID SULFIDE OF AN ALKYL PHOSPHATE ESTER HAVING THE FORMULA
Claim 4
Dependent Claim
39 words
A CORRISION INHIBITING COMPOSITION COMPRISING A DIALKYNYL SULFIDE HAVING FROM 3 TO 6 CARBON ATOMS IN EACH ALKYNYL RADICAL AND FROM 0.25 TO 1 PART BY VOLUME BASED ON SAID SULFIDE OF AN ALKYL PHOSPHATE ESTER HAVING THE FORMULA
Claim 5
Dependent Claim
49 words
A CORROSION-INHIBITED, AQUEOUS, NON-OXIDIZING ACID COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF A NONOXIDIZING ACID CONTAINING FROM 0.01 TO 1.0 PERCENT BY VOLUME OF A CONCENTRATE CONSISTING OF 4 PARTS BY VOLUME OF DIPROPARGYL SULFIDE, FROM 1 TO 4 PARTS BY VOLUME OF AN ALKYL PHOSPHATE ESTER HAVING THE FORMULA
Claim 6
Dependent Claim
49 words
A CORROSION-INHIBITED, AQUEOUS, NON-OXIDIZING ACID COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF A NONOXIDIZING ACID CONTAINING FROM 0.01 TO 1.0 PERCENT BY VOLUME OF A CONCENTRATE CONSISTING OF 4 PARTS BY VOLUME OF DIPROPARGYL SULFIDE, FROM 1 TO 4 PARTS BY VOLUME OF AN ALKYL PHOSPHATE ESTER HAVING THE FORMULA
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |