US3173770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal deactivators for organic materials
Assignee: Eastman Kodak Co
•
Filing: 1960-12-23
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Granted: 1965-03-16
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Expires: 1980-12-23
Abstract
No abstract record available.
Inventors
- 👤 John W Thompson
- 👤 Gerald R Lappin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:31
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
82 words
THE LIQUID FUEL COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF HYDROCARBON OIL AN D A MINOR AMOUNT, SUFFICIENT TO SUPPRESS THE CATALYTIC EFFECT OF METALS ON OXIDATION OF SAID OIL, OF AN IMIDE-AMIDE REACTION PRODUCT OF ETHYLENEDIAMINE TETRAACETIC ACID WITH A PRIMARY, ALKYL AMINE HAVING 4 TO 24 CARBON ATOMS PER MOLECULE, SAID PRODUCT BEING FORMED BY CONVERTING AN AVERAGE OF MORE THAN 25% BUT LESS THAN 75% OF THE CARBOXYL GROUPS OF SAID ETHYLENEDIAMINE TETRAACETIC ACID TO THE IMIDE-AMIDE FORMS.
Claim 2
Dependent Claim
82 words
THE LIQUID FUEL COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF HYDROCARBON OIL AN D A MINOR AMOUNT, SUFFICIENT TO SUPPRESS THE CATALYTIC EFFECT OF METALS ON OXIDATION OF SAID OIL, OF AN IMIDE-AMIDE REACTION PRODUCT OF ETHYLENEDIAMINE TETRAACETIC ACID WITH A PRIMARY, ALKYL AMINE HAVING 4 TO 24 CARBON ATOMS PER MOLECULE, SAID PRODUCT BEING FORMED BY CONVERTING AN AVERAGE OF MORE THAN 25% BUT LESS THAN 75% OF THE CARBOXYL GROUPS OF SAID ETHYLENEDIAMINE TETRAACETIC ACID TO THE IMIDE-AMIDE FORMS.
References Cited (Backward Citations)
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US2573779A
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US2532391A
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US2673144A
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US2954342A
Cited
US3024277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |