Patent US3740336A successfully refreshed from Google Patents.
US3740336A
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Hydrogen embrittlement inhibitors for organic compositions
Assignee: Monsanto Co
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Filing: 1970-12-23
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Granted: 1973-06-19
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Expires: 1990-12-23
Abstract
Abstract HYDROGEN EMBRITTLEMENT OF STEEL IN CONTACT WITH AQUEOUS SOLUTIONS OF ORGANIC COMPOUNDS WHICH HYDROLYZE TO AMMONIA OR AMINES IS INHIBITED BY INCORPORATION IN THE AQUEOUS ORGANIC SOLUTION A MINOR AMOUNT OF A DIMERIC ACID HAVING FROM ABOUT 32 TO 44 CARBON ATOMS, E.G., DILINOLEIC ACID, AND AN ORGANO-PHOSPHORUS COMPOSITION WHICH IS THE REACTION PRODUCT OF A MONOALKYL PHENOL OR A DIALKYL PHENOL AND PHOSPHOROUS PENTOXIDE.
Inventors
- 👤 F Langenfeld
- 👤 W Overall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:07
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |