US2982632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azelaic acid-diamine reaction product deicer
Assignee: ExxonMobil Oil Corp
•
Filing: 1958-12-30
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Granted: 1961-05-02
•
Expires: 1978-12-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry J Andress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:43
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A MOTOR GASOLINE CONTAINING A SMALL AMOUNT, SUFFICIENT TO INHIBIT STALLING, OF THE REACTION PRODUCT OF AN N-ALKYL DIAMINE OF THE STRUCTURE RNHCH2CH2CH2NH2, WHEREIN R IS A MIXTURE OF ALIPHATIC HYDROCARBON RADICALS CONTAINING BETWEEN ABOUT 14 CARBON ATOMS AND ABOUT 18 CARBON ATOMS, AND AZELAIC ACID, IN A MOLAR RATIO OF 2:1, RESPECTIVELY, SAID REACTION PRODUCT BEING PRODUCED BY HEATING AT A TEMPERATURE VARYING BETWEEN ABOUT 100*C. AND ABOUT 300*C. AND FOR BETWEEN ABOUT 4 HOURS AND ABOUT 8 HOURS UNTIL 2 MOLES OF WATER HAVE BEEN EVOLVED PER MOLE OF AZELAIC ACID.
Claim 2
Dependent Claim
93 words
A MOTOR GASOLINE CONTAINING A SMALL AMOUNT, SUFFICIENT TO INHIBIT STALLING, OF THE REACTION PRODUCT OF AN N-ALKYL DIAMINE OF THE STRUCTURE RNHCH2CH2CH2NH2, WHEREIN R IS A MIXTURE OF ALIPHATIC HYDROCARBON RADICALS CONTAINING BETWEEN ABOUT 14 CARBON ATOMS AND ABOUT 18 CARBON ATOMS, AND AZELAIC ACID, IN A MOLAR RATIO OF 2:1, RESPECTIVELY, SAID REACTION PRODUCT BEING PRODUCED BY HEATING AT A TEMPERATURE VARYING BETWEEN ABOUT 100*C. AND ABOUT 300*C. AND FOR BETWEEN ABOUT 4 HOURS AND ABOUT 8 HOURS UNTIL 2 MOLES OF WATER HAVE BEEN EVOLVED PER MOLE OF AZELAIC ACID.
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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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |