Patent US2693468A successfully refreshed from Google Patents.
US2693468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidized wax-derived basic nitrogencontaining compound and method of preparing same
Assignee: Baker Petrolite LLC
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Filing: 1952-02-28
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Granted: 1954-11-02
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Expires: 1972-02-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles M Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:30
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/06; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/12; C07D233/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
181 words
THE PROCESS OF PRODUCING A CO-GENERIC MIXTURE CONSISTING SUBSTANTIALLY OF WAX-LIKE BASIC NITROGEN-CONTAINING COMPOUNDS DERIVED BY REACTION BETWEEN (A) OXIDIZED HYDROCARBON WAX HAVING A SAPONIFICATION VALUE OF 20 TO 500; AND ACID VALUE OF 0 TO 40 AND HAVING 35 TO 100 CARBON ATOMS PER MOLECULE AND (B) A POLYAMINE SELECTED FROM THE CLASS CONSISTING OF (A) POLYAMINES CONTAINING AT LEAST ONE PRIMARY AMINO GROUP AND AT LEAST ONE SECONDARY AMINO GROUP SEPARATED FROM SAID PRIMARY AMINO GROUP BY NOT LESS THAN TWO CARBON ATOMS AND NOT MORE THAN THREE CARBON ATOMS AND (B) POLYAMINES CONTAINING AT LEAST ONE FIRST PRIMARY AMINO GROUP AND AT LEAST ONE SECOND PRIMARY AMINO GROUP SEPARATED FROM SAID FIRST PRIMARY AMINO GROUP BY NOT LESS THAN TWO CARBON ATOMS AND NOT MORE THAN THREE CARBON ATOMS; THE RATIO OF REACTANTS BEING AT LEAST ONE CARBOXYL EQUIVALENT OF (A) TO ONE MOLE OF (B) AND SAID REACTION BEING CONDUCTED AT A TEMPERATURE AT LEAST SUFFICIENTLY HIGH TO PRODUCE ACYLATION AND BELOW THE PYROLYTIC POINT, SAID TEMPERATURE BEING WITHIN THE RANGE FROM 100 TO 300 DEGREES CENTIGRADE.
Claim 2
Dependent Claim
181 words
THE PROCESS OF PRODUCING A CO-GENERIC MIXTURE CONSISTING SUBSTANTIALLY OF WAX-LIKE BASIC NITROGEN-CONTAINING COMPOUNDS DERIVED BY REACTION BETWEEN (A) OXIDIZED HYDROCARBON WAX HAVING A SAPONIFICATION VALUE OF 20 TO 500; AND ACID VALUE OF 0 TO 40 AND HAVING 35 TO 100 CARBON ATOMS PER MOLECULE AND (B) A POLYAMINE SELECTED FROM THE CLASS CONSISTING OF (A) POLYAMINES CONTAINING AT LEAST ONE PRIMARY AMINO GROUP AND AT LEAST ONE SECONDARY AMINO GROUP SEPARATED FROM SAID PRIMARY AMINO GROUP BY NOT LESS THAN TWO CARBON ATOMS AND NOT MORE THAN THREE CARBON ATOMS AND (B) POLYAMINES CONTAINING AT LEAST ONE FIRST PRIMARY AMINO GROUP AND AT LEAST ONE SECOND PRIMARY AMINO GROUP SEPARATED FROM SAID FIRST PRIMARY AMINO GROUP BY NOT LESS THAN TWO CARBON ATOMS AND NOT MORE THAN THREE CARBON ATOMS; THE RATIO OF REACTANTS BEING AT LEAST ONE CARBOXYL EQUIVALENT OF (A) TO ONE MOLE OF (B) AND SAID REACTION BEING CONDUCTED AT A TEMPERATURE AT LEAST SUFFICIENTLY HIGH TO PRODUCE ACYLATION AND BELOW THE PYROLYTIC POINT, SAID TEMPERATURE BEING WITHIN THE RANGE FROM 100 TO 300 DEGREES CENTIGRADE.
Claim 3
Dependent Claim
7 words
A HETEROCYCLIC, ORGANIC COMPOUND OF THE FORMULA:
Claim 4
Dependent Claim
7 words
A HETEROCYCLIC, ORGANIC COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
DE704410C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |