Patent US2833712A successfully refreshed from Google Patents.
US2833712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solidified corrosion inhibitor
Assignee: Pan American Petroleum Corp
•
Filing: 1956-02-13
•
Granted: 1958-05-06
•
Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Loyd W Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:48
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; Y; Y10; Y10S; Y10S507/00; Y10S507/902; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A NORMALLY SOLID CORROSION INHIBITOR COMPRISING: (A) FROM ABOUT 15 TO ABOUT 50 PARTS OF A COMPLEX MIXTURE OF AN ALIPHATIC AMINE HAVING A HYDROCARBON RADICAL CONTAINING FROM ABOUT 10 TO ABOUT 20 CARBON ATOMS WITH A CARBOXYLIC ACID CONTAINING FROM ABOUT 5 TO ABOUT 20 CARBON ATOMS; (B) FROM ABOUT 1 TO ABOUT 10 PARTS OF A WATERSOLUBLE NONIONIC EMULSIFYING AGENT CAPABLE OF DISPERSING THE AMINE-ACID COMPLEX MIXTURE IN AN AQUEOUS SOLUTION; (C) FROM ABOUT 25 TO ABOUT 60 PARTS OF AN OIL-SOLUBLE POLYMERIZED OLEFIN BINDER HAVING A MELTING POINT BETWEEN ABOUT 150* AND 250*F., AND (D) A COUPLING AGENT CONSISTING OF FROM ABOUT 3 TO ABOUT 30 PARTS OF AN AMIDE OF AN ALIPHATIC CARBOXYLIC ACID CONTAINING FROM ABOUT 6 TO ABOUT 18 CARBON ATOMS.
Claim 2
Dependent Claim
127 words
A NORMALLY SOLID CORROSION INHIBITOR COMPRISING: (A) FROM ABOUT 15 TO ABOUT 50 PARTS OF A COMPLEX MIXTURE OF AN ALIPHATIC AMINE HAVING A HYDROCARBON RADICAL CONTAINING FROM ABOUT 10 TO ABOUT 20 CARBON ATOMS WITH A CARBOXYLIC ACID CONTAINING FROM ABOUT 5 TO ABOUT 20 CARBON ATOMS; (B) FROM ABOUT 1 TO ABOUT 10 PARTS OF A WATERSOLUBLE NONIONIC EMULSIFYING AGENT CAPABLE OF DISPERSING THE AMINE-ACID COMPLEX MIXTURE IN AN AQUEOUS SOLUTION; (C) FROM ABOUT 25 TO ABOUT 60 PARTS OF AN OIL-SOLUBLE POLYMERIZED OLEFIN BINDER HAVING A MELTING POINT BETWEEN ABOUT 150* AND 250*F., AND (D) A COUPLING AGENT CONSISTING OF FROM ABOUT 3 TO ABOUT 30 PARTS OF AN AMIDE OF AN ALIPHATIC CARBOXYLIC ACID CONTAINING FROM ABOUT 6 TO ABOUT 18 CARBON ATOMS.
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) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |