US2914557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamine naphthenates
Assignee: Sunoco Inc
•
Filing: 1955-06-09
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Granted: 1959-11-24
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Expires: 1975-06-09
Abstract
No abstract record available.
Inventors
- 👤 Jr William F Oxford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:41
CPC Classifications
C; C10; C10G; C10G19/00; C09; C09K; C09K8/00; C09K8/54; C10G75/00; C10G75/02; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/16; C09K2208/00; C09K2208/32; C10G2300/00; C10G2300/20; C10G2300/201; C10G2300/202; C10G2300/203; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A NEW COMPOSITION OF MATTER SELECTED FROM THE GROUP CONSISTING OF (1) SALTS OF PETROLEUM NAPHTHENIC ACIDS HAVING AN AVERAGE OF AT LEAST ABOUT 18 CARBON ATOMS PER MOLECULE WITH AN ALIPHATIC POLYAMINE HAVING THE FORMULA RNH((CH2)MNH)NH WHERE R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND THE HYDROCARBON RADICAL OF A NATURALLY OCCURRING FATTY ACID RCOOH, WHERE M IS AN INTEGER FROM 2 TO 5, AND WHERE N IS AN INTEGER FROM 1 TO 10, SAID POLYAMINE HAVING AT LEAST 12 CARBON ATOMS PER MOLECULE, (2) N-HYDROXYALKYL DERIVATIVES OF SUCH SALTS WHEREIN THE HYDROXYALKYL GROUPS CONTAIN A TOTAL OF 2 TO 10 CARBON ATOMS, AND (3) NPOLYOXYALKYLENE DERIVATIVES OF SUCH SALTS WHEREIN THE POLYOXYALKYLENE GROUPS CONTAIN A TOTAL OF FROM 2 TO 10 CARBON ATOMS.
Claim 2
Dependent Claim
127 words
A NEW COMPOSITION OF MATTER SELECTED FROM THE GROUP CONSISTING OF (1) SALTS OF PETROLEUM NAPHTHENIC ACIDS HAVING AN AVERAGE OF AT LEAST ABOUT 18 CARBON ATOMS PER MOLECULE WITH AN ALIPHATIC POLYAMINE HAVING THE FORMULA RNH((CH2)MNH)NH WHERE R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND THE HYDROCARBON RADICAL OF A NATURALLY OCCURRING FATTY ACID RCOOH, WHERE M IS AN INTEGER FROM 2 TO 5, AND WHERE N IS AN INTEGER FROM 1 TO 10, SAID POLYAMINE HAVING AT LEAST 12 CARBON ATOMS PER MOLECULE, (2) N-HYDROXYALKYL DERIVATIVES OF SUCH SALTS WHEREIN THE HYDROXYALKYL GROUPS CONTAIN A TOTAL OF 2 TO 10 CARBON ATOMS, AND (3) NPOLYOXYALKYLENE DERIVATIVES OF SUCH SALTS WHEREIN THE POLYOXYALKYLENE GROUPS CONTAIN A TOTAL OF FROM 2 TO 10 CARBON ATOMS.
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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) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |