US2948747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing metallo derivatives of acetoacetic acid esters
Assignee: Ethyl Corp
•
Filing: 1954-12-01
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Granted: 1960-08-09
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Expires: 1974-12-01
Abstract
No abstract record available.
Inventors
- 👤 August C Karbum
- 👤 James C Boag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:16
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/1814
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS OF PREPARING LIQUID, METAL ORGANIC MATERIAL WHICH COMPRISES THE STEPS OF FORMING A MIXTURE OF A LIQUID ALIPHATIC ESTER OF ACETOACETIC ACID AND IN AN IONIC COMPOUND OF A METAL THAT REACTS WITH SAID ESTER TO FORM A CHELATE OF THE METAL, AND HEATING THIS MIXTURE TO A TEMPERATURE OF ABOUT 100*C. AND LESS THAN 250*C. FOR A TIME SUFFICIENT TO CAUSE THE ABOVE REACTION AND TO FORM A PRODUCT IN WHICH THE METAL IN CHEMICALLY BOUND BUT WHICH REMAINS LIQUID AT ORDINARY TEMPERATURES.
Claim 2
Dependent Claim
86 words
A PROCESS OF PREPARING LIQUID, METAL ORGANIC MATERIAL WHICH COMPRISES THE STEPS OF FORMING A MIXTURE OF A LIQUID ALIPHATIC ESTER OF ACETOACETIC ACID AND IN AN IONIC COMPOUND OF A METAL THAT REACTS WITH SAID ESTER TO FORM A CHELATE OF THE METAL, AND HEATING THIS MIXTURE TO A TEMPERATURE OF ABOUT 100*C. AND LESS THAN 250*C. FOR A TIME SUFFICIENT TO CAUSE THE ABOVE REACTION AND TO FORM A PRODUCT IN WHICH THE METAL IN CHEMICALLY BOUND BUT WHICH REMAINS LIQUID AT ORDINARY TEMPERATURES.
References Cited (Backward Citations)
US2149856A
Cited
US2307075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |