Patent US3055749A successfully refreshed from Google Patents.
US3055749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additives for modifying the electrical properties of combustible organic liquids
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-04-16
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Granted: 1962-09-25
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Expires: 1979-04-16
Abstract
No abstract record available.
Inventors
- 👤 John P Mcdermott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:50
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A COMBUSTIBLE ORGANIC LIQUID BOILING IN THE RANGE BETWEEN ABOUT 75* F, AND ABOUT 750* F, AND HAVING A SPECIFIC CONDUCTIVITY IN THE RANGE BETWEEN ABOUT 1X10-15 AND ABOUT 1X10-12 MHO PER CENTIMETER TO WHICH HAS BEEN ADDED FROM ABOUT 0.0001% TO ABOUT 1% BY WEIGHT OF A QUARTERNARY AMMONIUM SALT OF AN ALKYLENEDIAMINE TETRACARBONYLIC ACID HAVING FROM 2 TO 4 CARBON ATOMS IN THE ALKYLENEDIAMINE PORTION OF THE MOLECULE AND FROM 2 TO 4 CARBON ATOMS IN EACH OF THE CARBOXYLIC ACID SUBSTITUENT GROUPS, AND WHEREIN THE QUATERNARY AMMONIUM RADICALS ARE SELECTED FROM THE GROUP CONSISTING OF UNSUBSTITUTED ALIPHATIC, AND ARYL RADICALS.
Claim 2
Dependent Claim
103 words
A COMBUSTIBLE ORGANIC LIQUID BOILING IN THE RANGE BETWEEN ABOUT 75* F, AND ABOUT 750* F, AND HAVING A SPECIFIC CONDUCTIVITY IN THE RANGE BETWEEN ABOUT 1X10-15 AND ABOUT 1X10-12 MHO PER CENTIMETER TO WHICH HAS BEEN ADDED FROM ABOUT 0.0001% TO ABOUT 1% BY WEIGHT OF A QUARTERNARY AMMONIUM SALT OF AN ALKYLENEDIAMINE TETRACARBONYLIC ACID HAVING FROM 2 TO 4 CARBON ATOMS IN THE ALKYLENEDIAMINE PORTION OF THE MOLECULE AND FROM 2 TO 4 CARBON ATOMS IN EACH OF THE CARBOXYLIC ACID SUBSTITUENT GROUPS, AND WHEREIN THE QUATERNARY AMMONIUM RADICALS ARE SELECTED FROM THE GROUP CONSISTING OF UNSUBSTITUTED ALIPHATIC, AND ARYL RADICALS.
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) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |