Patent US2913305A successfully refreshed from Google Patents.
US2913305A
Expired / Lapsed
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Process for corrosion inhibition
Assignee: General Mills Inc
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Filing: 1957-02-21
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Granted: 1959-11-17
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Expires: 1977-02-21
Abstract
No abstract record available.
Inventors
- 👤 Donald L Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:29
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR CORROSION INHIBITION OF FERROUS METALLIC SUBSTANCES CONTACTED BY OIL AND AQUEOUS MEDIA WHICH COMPRISES CONTACTING SAID SUBSTANCES WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYAMINES HAVING STRUCTURES CORRESPONDING TO THE STRUCTURE OF POLYMERIC FAT ACIDS SAVE THAT THE POLYAMINES HAVE AMINE GROUPS IN PLACE OF THE CARBOXYL GROUPS OF THE POLYMRIC FAT ACIDS, AND SALTS OF SAID POLAMINES WITH FATTY ACIDS CONTAINING AT LEAST FOUR CARBON ATOMS.
Claim 2
Dependent Claim
72 words
A PROCESS FOR CORROSION INHIBITION OF FERROUS METALLIC SUBSTANCES CONTACTED BY OIL AND AQUEOUS MEDIA WHICH COMPRISES CONTACTING SAID SUBSTANCES WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYAMINES HAVING STRUCTURES CORRESPONDING TO THE STRUCTURE OF POLYMERIC FAT ACIDS SAVE THAT THE POLYAMINES HAVE AMINE GROUPS IN PLACE OF THE CARBOXYL GROUPS OF THE POLYMRIC FAT ACIDS, AND SALTS OF SAID POLAMINES WITH FATTY ACIDS CONTAINING AT LEAST FOUR CARBON ATOMS.
References Cited (Backward Citations)
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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) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |